The remote OracleVM system is missing necessary patches to address critical security updates :

  - fix CVE-2016-2177 - possible integer overflow

  - fix CVE-2016-2178 - non-constant time DSA operations

  - fix CVE-2016-2182 - possible buffer overflow in     BN_bn2dec

  - fix CVE-2016-6306 - certificate message OOB reads

  - mitigate CVE-2016-2183 - degrade all 64bit block ciphers     and RC4 to 112 bit effective strength

According to its self-reported version, the MySQL Enterprise Monitor application running on the remote host is 3.3.x prior to 3.3.1.1112.
It is, therefore, affected by multiple vulnerabilities in the bundled version of OpenSSL :

  - Multiple integer overflow conditions exist in s3_srvr.c,     ssl_sess.c, and t1_lib.c due to improper use of pointer     arithmetic for heap-buffer boundary checks. An     unauthenticated, remote attacker can exploit this to     cause a denial of service. (CVE-2016-2177)

  - An information disclosure vulnerability exists in the     dsa_sign_setup() function in dsa_ossl.c due to a failure     to properly ensure the use of constant-time operations.
    An unauthenticated, remote attacker can exploit this,     via a timing side-channel attack, to disclose DSA key     information. (CVE-2016-2178)

  - A denial of service vulnerability exists in the DTLS     implementation due to a failure to properly restrict the     lifetime of queue entries associated with unused     out-of-order messages. An unauthenticated, remote     attacker can exploit this, by maintaining multiple     crafted DTLS sessions simultaneously, to exhaust memory.
    (CVE-2016-2179)

  - An out-of-bounds read error exists in the X.509 Public     Key Infrastructure Time-Stamp Protocol (TSP)     implementation. An unauthenticated, remote attacker can     exploit this, via a crafted time-stamp file that is     mishandled by the 'openssl ts' command, to cause     denial of service or to disclose sensitive information.
    (CVE-2016-2180)

  - A denial of service vulnerability exists in the     Anti-Replay feature in the DTLS implementation due to     improper handling of epoch sequence numbers in records.
    An unauthenticated, remote attacker can exploit this,     via spoofed DTLS records, to cause legitimate packets to     be dropped. (CVE-2016-2181)

  - An overflow condition exists in the BN_bn2dec() function     in bn_print.c due to improper validation of     user-supplied input when handling BIGNUM values. An     unauthenticated, remote attacker can exploit this to     crash the process. (CVE-2016-2182)

  - A vulnerability exists, known as SWEET32, in the 3DES     and Blowfish algorithms due to the use of weak 64-bit     block ciphers by default. A man-in-the-middle attacker     who has sufficient resources can exploit this     vulnerability, via a 'birthday' attack, to detect a     collision that leaks the XOR between the fixed secret     and a known plaintext, allowing the disclosure of the     secret text, such as secure HTTPS cookies, and possibly     resulting in the hijacking of an authenticated session.
    (CVE-2016-2183)

  - A flaw exists in the tls_decrypt_ticket() function in     t1_lib.c due to improper handling of ticket HMAC     digests. An unauthenticated, remote attacker can exploit     this, via a ticket that is too short, to crash the     process, resulting in a denial of service.
    (CVE-2016-6302)

  - An integer overflow condition exists in the     MDC2_Update() function in mdc2dgst.c due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this to cause a heap-based     buffer overflow, resulting in a denial of service     condition or possibly the execution of arbitrary code.
    (CVE-2016-6303)

  - A denial of service vulnerability exists in the     ssl_parse_clienthello_tlsext() function in t1_lib.c due     to improper handling of overly large OCSP Status Request     extensions from clients. An unauthenticated, remote     attacker can exploit this, via large OCSP Status Request     extensions, to exhaust memory resources. (CVE-2016-6304)

  - An out-of-bounds read error exists in the certificate     parser that allows an unauthenticated, remote attacker     to cause a denial of service via crafted certificate     operations. (CVE-2016-6306)

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - OpenSSL through 1.0.2h incorrectly uses pointer     arithmetic for heap-buffer boundary checks, which might     allow remote attackers to cause a denial of service     (integer overflow and application crash) or possibly     have unspecified other impact by leveraging unexpected     malloc behavior, related to s3_srvr.c, ssl_sess.c, and     t1_lib.c.(CVE-2016-2177)

  - The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in     OpenSSL through 1.0.2h does not properly ensure the use     of constant-time operations, which makes it easier for     local users to discover a DSA private key via a timing     side-channel attack.(CVE-2016-2178)

  - The DTLS implementation in OpenSSL before 1.1.0 does     not properly restrict the lifetime of queue entries     associated with unused out-of-order messages, which     allows remote attackers to cause a denial of service     (memory consumption) by maintaining many crafted DTLS     sessions simultaneously, related to d1_lib.c,     statem_dtls.c, statem_lib.c, and     statem_srvr.c.(CVE-2016-2179)

  - The TS_OBJ_print_bio function in crypto/ts/ts_lib.c in     the X.509 Public Key Infrastructure Time-Stamp Protocol     (TSP) implementation in OpenSSL through 1.0.2h allows     remote attackers to cause a denial of service     (out-of-bounds read and application crash) via a     crafted time-stamp file that is mishandled by the     'openssl ts' command.(CVE-2016-2180)

  - The Anti-Replay feature in the DTLS implementation in     OpenSSL before 1.1.0 mishandles early use of a new     epoch number in conjunction with a large sequence     number, which allows remote attackers to cause a denial     of service (false-positive packet drops) via spoofed     DTLS records, related to rec_layer_d1.c and     ssl3_record.c.(CVE-2016-2181)

  - The BN_bn2dec function in crypto/bn/bn_print.c in     OpenSSL before 1.1.0 does not properly validate     division results, which allows remote attackers to     cause a denial of service (out-of-bounds write and     application crash) or possibly have unspecified other     impact via unknown vectors.(CVE-2016-2182)

  - The tls_decrypt_ticket function in ssl/t1_lib.c in     OpenSSL before 1.1.0 does not consider the HMAC size     during validation of the ticket length, which allows     remote attackers to cause a denial of service via a     ticket that is too short.(CVE-2016-6302)

  - Multiple memory leaks in t1_lib.c in OpenSSL before     1.0.1u, 1.0.2 before 1.0.2i, and 1.1.0 before 1.1.0a     allow remote attackers to cause a denial of service     (memory consumption) via large OCSP Status Request     extensions.(CVE-2016-6304)

  - The certificate parser in OpenSSL before 1.0.1u and     1.0.2 before 1.0.2i might allow remote attackers to     cause a denial of service (out-of-bounds read) via     crafted certificate operations, related to s3_clnt.c     and s3_srvr.c.(CVE-2016-6306)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of Oracle Secure Global Desktop installed on the remote host is 4.71, 5.2, or 5.3 and is missing a security patch from the April 2017 Critical Patch Update (CPU). It is, therefore, affected by multiple vulnerabilities :

  - An integer overflow condition exists in the Window System     (X11) subcomponent in multiple functions in X.Org libExt     due to improper validation of user-supplied input when     calculating the amount of memory required to handle     return data. An unauthenticated, remote attacker can     exploit this to cause a denial of service condition or     the execution of arbitrary code. Note that this issue     only affects version 4.71. (CVE-2013-1982)

  - An integer overflow condition exists in X.Org libXfixes     in the XFixesGetCursorImage() function when handling     large cursor dimensions or name lengths due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this to cause a denial of     service condition or the execution of arbitrary code.
    (CVE-2013-1983)

  - An integer overflow condition exists within multiple     functions in X.Org libXi due to improper validation of     user-supplied input when calculating the amount of     memory needed to handle return data. An unauthenticated,     remote attacker can exploit this to cause a denial of     service condition or the execution of arbitrary code.
    (CVE-2013-1984)

  - An integer overflow condition exists in X.Org     libXinerama in the XineramaQueryScreens() function due     to improper validation of user-supplied input when     calculating the amount of memory needed to handle return     data. An unauthenticated, remote attacker can exploit     this to cause a denial of service condition or the     execution of arbitrary code. (CVE-2013-1985)

  - An integer overflow condition exists in multiple     functions in X.Org libXrandr due to improper validation     of user-supplied input when calculating the amount of     memory needed to handle return data. An unauthenticated,     remote attacker can exploit this to cause a denial of     service condition or the execution of arbitrary code.
    (CVE-2013-1986)

  - An integer overflow condition exists in multiple     functions in X.Org libXrender due to improper validation     of user-supplied input when calculating the amount of     memory needed to handle return data. An unauthenticated,     remote attacker can exploit this to cause a denial of     service condition or the execution of arbitrary code.
    (CVE-2013-1987)

  - An overflow condition exists in X.Org libXi in the     XListInputDevices() function, related to an unexpected     sign extension, due to improper checking of the amount     of memory needed to handle returned data when converting     smaller integer types to larger ones. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2013-1995)

  - An overflow condition exists within multiple functions     in X.Org LibXi due to improper validation of     user-supplied input. An unauthenticated, remote attacker     can exploit this, via a specially crafted length or     index, to cause a denial of service condition or the     execution of arbitrary code. (CVE-2013-1998)

  - An overflow condition exists in X.Org LibXt in the
    _XtResourceConfigurationEH() function due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this, via a specially     crafted length or index, to cause a denial of service     condition or the execution of arbitrary code.
    (CVE-2013-2002)

  - An integer overflow condition exists in X.Org libXcursor     in the  _XcursorFileHeaderCreate() function due to     improper validation of user-supplied input. An     unauthenticated, remote attacker can exploit this, via     a specially crafted file, to cause a denial of service     condition or the execution of arbitrary code.
    (CVE-2013-2003)

  - An uninitialized pointer flaw exists within multiple     functions in X.Org LibXt due to a failure to check for     proper initialization of pointers. An unauthenticated,     remote attacker can exploit this to corrupt memory,     resulting in a denial of service condition or the     possible execution of arbitrary code. (CVE-2013-2005)

  - A flaw exists in the Application Server subcomponent     (Apache Tomcat) due to a failure to process passwords     when they are paired with non-existent usernames. An     authenticated, remote attacker can exploit this, via a     timing attack, to enumerate user account names.
    (CVE-2016-0762)

  - Multiple integer overflow conditions exist in s3_srvr.c,     ssl_sess.c, and t1_lib.c due to improper use of pointer     arithmetic for heap-buffer boundary checks. An     unauthenticated, remote attacker can exploit these to     cause a denial of service. (CVE-2016-2177)

  - An information disclosure vulnerability exists in the     dsa_sign_setup() function in dsa_ossl.c due to a failure     to properly ensure the use of constant-time operations.
    An unauthenticated, remote attacker can exploit this,     via a timing side-channel attack, to disclose DSA key     information. (CVE-2016-2178)

  - A denial of service vulnerability exists in the DTLS     implementation due to a failure to properly restrict the     lifetime of queue entries associated with unused     out-of-order messages. An unauthenticated, remote     attacker can exploit this, by maintaining multiple     crafted DTLS sessions simultaneously, to exhaust memory.
    (CVE-2016-2179)

  - An out-of-bounds read error exists in the X.509 Public     Key Infrastructure Time-Stamp Protocol (TSP)     implementation. An unauthenticated, remote attacker can     exploit this, via a crafted time-stamp file that is     mishandled by the 'openssl ts' command, to cause a     denial of service or to disclose sensitive information.
    (CVE-2016-2180)

  - A denial of service vulnerability exists in the     Anti-Replay feature in the DTLS implementation due to     improper handling of epoch sequence numbers in records.
    An unauthenticated, remote attacker can exploit this,     via spoofed DTLS records, to cause legitimate packets to     be dropped. (CVE-2016-2181)

  - An overflow condition exists in the BN_bn2dec() function     in bn_print.c due to improper validation of     user-supplied input when handling BIGNUM values. An     unauthenticated, remote attacker can exploit this to     crash the process. (CVE-2016-2182)

  - A vulnerability exists, known as SWEET32, in the 3DES     and Blowfish algorithms due to the use of weak 64-bit     block ciphers by default. A man-in-the-middle attacker     who has sufficient resources can exploit this     vulnerability, via a 'birthday' attack, to detect a     collision that leaks the XOR between the fixed secret     and a known plaintext, allowing the disclosure of the     secret text, such as secure HTTPS cookies, and possibly     resulting in the hijacking of an authenticated session.
    (CVE-2016-2183)

  - A flaw exists in the Core subcomponent, specifically in     the libcurl library, due to improper validation of TLS     certificates. An authenticated, remote attacker with the     ability to intercept network traffic can exploit this     issue to disclose or manipulate transmitted data by     spoofing the TLS/SSL server using a certificate that     appears valid. Note that this issue only affects     versions 5.2 and 5.3. (CVE-2016-3739)

  - A flaw exists in cURL and libcurl when loading dynamic     link library (DLL) files security.dll, secur32.dll, or     ws2_32.dll due searching an insecure path which may not     be trusted or under user control. A local attacker can     exploit this, via a Trojan DLL file placed in the search     path, to execute arbitrary code with the privileges of     the user running the program. (CVE-2016-4802)

  - A security bypass vulnerability exists in Apache Tomcat     due to an unspecified flaw related to web applications.
    A local attacker can exploit this, via a utility method     that is available to web applications, to bypass a     configured SecurityManager. (CVE-2016-5018)

  - An out-of-bounds access error exists in the Window     System (X11) subcomponent, specifically in the     XvQueryAdaptors() function in file Xv.c, when handling     server responses. An authenticated, remote attacker can     exploit this to impact confidentiality, integrity, and     availability. (CVE-2016-5407)

  - A use-after-free error exists in cURL and libcurl within     file lib/vtls/vtls.c due to the program attempting to     resume TLS sessions even if the client certificate     fails. An unauthenticated, remote attacker can exploit     this to bypass validation mechanisms, allowing the     attacker to possibly control which connection is used.
    (CVE-2016-5419)

  - A flaw exists in cURL and libcurl in the     Curl_ssl_config_matches() function within file     lib/vtls/vtls.c due to the program reusing TLS     connections with different client certificates. An     unauthenticated, remote attacker can exploit this to     disclose sensitive cross-realm information.
    (CVE-2016-5420)

  - A use-after-free error exists in cURL and libcurl in     in the close_all_connections() function within file     lib/multi.c due to connection pointers not being     properly cleared. An unauthenticated, remote attacker     can exploit this to have an unspecified impact on     confidentiality, integrity, and availability.
    (CVE-2016-5421)

  - A flaw exists in the tls_decrypt_ticket() function     in t1_lib.c due to improper handling of ticket HMAC     digests. An unauthenticated, remote attacker can exploit     this, via a ticket that is too short, to crash the     process, resulting in a denial of service.
    (CVE-2016-6302)

  - An integer overflow condition exists in the     MDC2_Update() function in mdc2dgst.c due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this to cause a heap-based     buffer overflow, resulting in a denial of service     condition or possibly the execution of arbitrary code.
    (CVE-2016-6303)

  - A flaw exists in the ssl_parse_clienthello_tlsext()     function in t1_lib.c due to improper handling of overly     large OCSP Status Request extensions from clients. An     unauthenticated, remote attacker can exploit this, via     large OCSP Status Request extensions, to exhaust memory     resources, resulting in a denial of service condition.
    (CVE-2016-6304)

  - A flaw exists in the SSL_peek() function in     rec_layer_s3.c due to improper handling of empty     records. An unauthenticated, remote attacker can exploit     this, by triggering a zero-length record in an SSL_peek     call, to cause an infinite loop, resulting in a denial     of service condition. (CVE-2016-6305)

  - An out-of-bounds read error exists in the certificate     parser that allows an unauthenticated, remote attacker     to cause a denial of service via crafted certificate     operations. (CVE-2016-6306)

  - A denial of service vulnerability exists in the     state-machine implementation due to a failure to check     for an excessive length before allocating memory. An     unauthenticated, remote attacker can exploit this, via a     crafted TLS message, to exhaust memory resources.
    (CVE-2016-6307)

  - A denial of service vulnerability exists in the DTLS     implementation due to improper handling of excessively     long DTLS messages. An unauthenticated, remote attacker     can exploit this, via a crafted DTLS message, to exhaust     available memory resources. (CVE-2016-6308)

  - A flaw exists in Apache Tomcat within SecurityManager     due to improper restriction of access to system     properties by the configuration files system property     replacement feature. A local attacker can exploit this,     via a crafted web application, to bypass SecurityManager     restrictions and disclose system properties.
    (CVE-2016-6794)

  - A flaw exists in Apache Tomcat that allows a local     attacker to bypass a configured SecurityManager by     changing the configuration parameters for the JSP     Servlet. (CVE-2016-6796)

  - A flaw exists in Apache Tomcat due to a failure to limit     web application access to global JNDI resources. A local     attacker can exploit this to gain unauthorized access to     resources. (CVE-2016-6797)

  - A flaw exists in Apache Tomcat when handling request     lines containing certain invalid characters. An     unauthenticated, remote attacker can exploit this to     conduct HTTP response splitting attacks by injecting     additional headers into responses. (CVE-2016-6816)

  - An infinite loop condition exists in Apache Tomcat in     the HTTP/2 parser when handling overly large headers. An     unauthenticated, remote attacker can exploit this, via a     specially crafted request, to cause a denial of service     condition. (CVE-2016-6817)

  - A carry propagation error exists in the     Broadwell-specific Montgomery multiplication procedure     when handling input lengths divisible by but longer than     256 bits. This can result in transient authentication     and key negotiation failures or reproducible erroneous     outcomes of public-key operations with specially crafted     input. A man-in-the-middle attacker can possibly exploit     this issue to compromise ECDH key negotiations that     utilize Brainpool P-512 curves. (CVE-2016-7055)

  - A flaw exists in cURL in the Curl_cookie_init() function     within file lib/cookie.c when handling cookies. An     unauthenticated, remote attacker can exploit this to     inject new cookies for arbitrary domains.
    (CVE-2016-8615)

  - A flaw exists in cURL in the ConnectionExists() function     within file lib/url.c when checking credentials supplied     for reused connections due to the comparison being     case-insensitive. An unauthenticated, remote attacker     can exploit this to authenticate without knowing the     proper case of the username and password.
    (CVE-2016-8616)

  - An integer overflow condition exists in cURL in the     base64_encode() function within file lib/base64.c due to     improper validation of certain input. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2016-8617)

  - A denial of service vulnerability exists in cURL in the     alloc_addbyter() function within file lib/mprintf.c due     to improper validation of overly long input when it is     supplied to the curl_maprintf() API method. An     unauthenticated, remote attacker can exploit this to     free already freed memory and thereby crash the program.
    (CVE-2016-8618)

  - A double-free error exists in cURL in the read_data()     function within file lib/security.c when handling     Kerberos authentication. An unauthenticated, remote     attacker can exploit this to free already freed memory,     resulting in an unspecified impact on confidentiality,     integrity, and availability. (CVE-2016-8619)

  - An out-of-bounds access error exists in cURL in file     tool_urlglob.c within the globbing feature. An     unauthenticated, remote attacker can exploit this to     disclose memory contents or execute arbitrary code.
    (CVE-2016-8620)

  - An out-of-bounds error exists in cURL in the parsedate()     function within file lib/parsedate.c when handling     dates. An unauthenticated, remote attacker can exploit     this to disclose memory contents or cause a denial of     service condition. (CVE-2016-8621)

  - An integer truncation error exists in cURL in the     curl_easy_unescape() function within file lib/escape.c     when handling overly large URLs. An unauthenticated,     remote attacker can exploit this to cause a denial of     service condition or the execution of arbitrary code.
    (CVE-2016-8622)

  - A use-after-free error exists in cURL within file     lib/cookie.c when handling shared cookies. An     unauthenticated, remote attacker can exploit this to     disclose memory contents. (CVE-2016-8623)

  - A flaw exists in cURL in the parseurlandfillconn()     function within file lib/url.c when parsing the     authority component of a URL with the host name part     ending in a '#' character. An unauthenticated, remote     attacker can exploit this to establish a connection to     a different host than intended. (CVE-2016-8624)

  - A flaw exists in cURL within International Domain Names     (IDNA) handling when translating domain names to puny     code for DNS resolving due to using the outdated IDNA     2003 standard instead of the IDNA 2008 standard, which     can result in incorrect translation of a domain name.
    An unauthenticated, remote attacker can exploit this to     cause network traffic to be redirected to a different     host than intended. (CVE-2016-8625)

  - A flaw exists in Apache Tomcat within the     catalina/mbeans/JmxRemoteLifecycleListener.java class     that is triggered during the deserialization of Java     objects. An unauthenticated, remote attacker can exploit     this to execute arbitrary code. (CVE-2016-8735)

  - A flaw exists in the Web Server component (Apache HTTP     Server) when handling whitespace patterns in User-Agent     headers. An authenticated, remote attacker can exploit     this, via a specially crafted User-Agent header, to     cause incorrect processing of sequences of requests,     resulting in incorrectly interpreting responses,     polluting the cache, or disclosing content from one     request to a second downstream user-agent.
    (CVE-2016-8743)

  - A NULL pointer dereference flaw exists within file     ssl/statem/statem_clnt.c when handling parameters for     the DHE or ECDHE key exchanges. An unauthenticated,     remote attacker can exploit this, via specially crafted     parameters, to cause a denial of service condition.
    (CVE-2017-3730)

  - A out-of-bounds read error exists exists in the Core     subcomponent, specifically in OpenSSL, when handling     packets using the CHACHA20/POLY1305 or RC4-MD5 ciphers.
    An unauthenticated, remote attacker can exploit this,     via specially crafted truncated packets, to cause a     denial of service condition. (CVE-2017-3731)

  - A carry propagating error exists in the x86_64     Montgomery squaring implementation that may cause the     BN_mod_exp() function to produce incorrect results. An     unauthenticated, remote attacker with sufficient     resources can exploit this to obtain sensitive     information regarding private keys. Note that this issue     is very similar to CVE-2015-3193. Moreover, the attacker     would additionally need online access to an unpatched     system using the target private key in a scenario with     persistent DH parameters and a private key that is     shared between multiple clients. For example, this can     occur by default in OpenSSL DHE based SSL/TLS cipher     suites. (CVE-2017-3732)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated packages that provide Red Hat JBoss Core Services Pack Apache Server 2.4.23 and fix several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

This release adds the new Apache HTTP Server 2.4.23 packages that are part of the JBoss Core Services offering.

This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.6, and includes bug fixes and enhancements.
Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.

Security Fix(es) :

* A flaw was found in the way OpenSSL encoded certain ASN.1 data structures. An attacker could use this flaw to create a specially crafted certificate which, when verified or re-encoded by OpenSSL, could cause it to crash, or execute arbitrary code using the permissions of the user running an application compiled against the OpenSSL library. (CVE-2016-2108)

* It was found that the length checks prior to writing to the target buffer for creating a virtual host mapping rule did not take account of the length of the virtual host name, creating the potential for a buffer overflow. (CVE-2016-6808)

* It was discovered that OpenSSL did not always use constant time operations when computing Digital Signature Algorithm (DSA) signatures. A local attacker could possibly use this flaw to obtain a private DSA key belonging to another user or service running on the same system. (CVE-2016-2178)

* Multiple integer overflow flaws were found in the way OpenSSL performed pointer arithmetic. A remote attacker could possibly use these flaws to cause a TLS/SSL server or client using OpenSSL to crash. (CVE-2016-2177)

* It was discovered that specifying configuration with a JVMRoute path longer than 80 characters will cause segmentation fault leading to a server crash. (CVE-2016-4459)

* An error was found in protocol parsing logic of mod_cluster load balancer Apache HTTP Server modules. An attacker could use this flaw to cause a Segmentation Fault in the serving httpd process.
(CVE-2016-8612)

Red Hat would like to thank the OpenSSL project for reporting CVE-2016-2108. The CVE-2016-4459 issue was discovered by Robert Bost (Red Hat). Upstream acknowledges Huzaifa Sidhpurwala (Red Hat), Hanno Bock, and David Benjamin (Google) as the original reporters of CVE-2016-2108.

According to its self-reported version number, the remote Juniper Junos device is affected by the following vulnerabilities related to OpenSSL :

  - A flaw exists in the ssl3_get_key_exchange() function     in file s3_clnt.c when handling a ServerKeyExchange     message for an anonymous DH ciphersuite with the value     of 'p' set to 0. A attacker can exploit this, by causing     a segmentation fault, to crash an application linked     against the library, resulting in a denial of service.
    (CVE-2015-1794)

  - A carry propagating flaw exists in the x86_64 Montgomery     squaring implementation that may cause the BN_mod_exp()     function to produce incorrect results. An attacker can     exploit this to obtain sensitive information regarding     private keys. (CVE-2015-3193)

  - A NULL pointer dereference flaw exists in file     rsa_ameth.c due to improper handling of ASN.1 signatures     that are missing the PSS parameter. A remote attacker     can exploit this to cause the signature verification     routine to crash, resulting in a denial of service     condition. (CVE-2015-3194)

  - A flaw exists in the ASN1_TFLG_COMBINE implementation in     file tasn_dec.c related to handling malformed     X509_ATTRIBUTE structures. A remote attacker can exploit     this to cause a memory leak by triggering a decoding     failure in a PKCS#7 or CMS application, resulting in a     denial of service. (CVE-2015-3195)

  - A race condition exists in s3_clnt.c that is triggered     when PSK identity hints are incorrectly updated in the     parent SSL_CTX structure when they are received by a     multi-threaded client. A remote attacker can exploit     this, via a crafted ServerKeyExchange message, to cause     a double-free memory error, resulting in a denial of     service. (CVE-2015-3196)

  - A cipher algorithm downgrade vulnerability exists due to     a flaw that is triggered when handling cipher     negotiation. A remote attacker can exploit this to     negotiate SSLv2 ciphers and complete SSLv2 handshakes     even if all SSLv2 ciphers have been disabled on the     server. Note that this vulnerability only exists if the     SSL_OP_NO_SSLv2 option has not been disabled.
    (CVE-2015-3197)

  - A key disclosure vulnerability exists due to improper     handling of cache-bank conflicts on the Intel     Sandy-bridge microarchitecture. An attacker can exploit     this to gain access to RSA key information.
    (CVE-2016-0702)

  - A flaw exists in the SSLv2 implementation,     specifically in the get_client_master_key() function     within file s2_srvr.c, due to accepting a nonzero     CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an     arbitrary cipher. A man-in-the-middle attacker can     exploit this to determine the MASTER-KEY value and     decrypt TLS ciphertext by leveraging a Bleichenbacher     RSA padding oracle. (CVE-2016-0703)

  - A flaw exists in the SSLv2 oracle protection mechanism,     specifically in the get_client_master_key() function     within file s2_srvr.c, due to incorrectly overwriting     MASTER-KEY bytes during use of export cipher suites.
    A remote attackers can exploit this to more easily     decrypt TLS ciphertext by leveraging a Bleichenbacher     RSA padding oracle. (CVE-2016-0704)

  - A double-free error exists due to improper validation of     user-supplied input when parsing malformed DSA private     keys. A remote attacker can exploit this to corrupt     memory, resulting in a denial of service condition or     the execution of arbitrary code. (CVE-2016-0705)

  - A NULL pointer dereference flaw exists in the     BN_hex2bn() and BN_dec2bn() functions. A remote attacker     can exploit this to trigger a heap corruption, resulting     in the execution of arbitrary code. (CVE-2016-0797)

  - A denial of service vulnerability exists due to improper     handling of invalid usernames. A remote attacker can     exploit this, via a specially crafted username, to leak     300 bytes of memory per connection, exhausting available     memory resources. (CVE-2016-0798)

  - Multiple memory corruption issues exist that allow a     remote attacker to cause a denial of service condition     or the execution of arbitrary code. (CVE-2016-0799)

  - A heap buffer overflow condition exists in the     EVP_EncodeUpdate() function within file     crypto/evp/encode.c that is triggered when handling     a large amount of input data. An unauthenticated, remote     attacker can exploit this to cause a denial of service     condition. (CVE-2016-2105)

  - A heap buffer overflow condition exists in the     EVP_EncryptUpdate() function within file     crypto/evp/evp_enc.c that is triggered when handling a     large amount of input data after a previous call occurs     to the same function with a partial block. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition. (CVE-2016-2106)

  - A remote code execution vulnerability exists in the     ASN.1 encoder due to an underflow condition that occurs     when attempting to encode the value zero represented as     a negative integer. An unauthenticated, remote attacker     can exploit this to corrupt memory, resulting in the     execution of arbitrary code. (CVE-2016-2108)

  - Multiple unspecified flaws exist in the d2i BIO     functions when reading ASN.1 data from a BIO due to     invalid encoding causing a large allocation of memory.
    An unauthenticated, remote attacker can exploit these to     cause a denial of service condition through resource     exhaustion. (CVE-2016-2109)

  - Multiple integer overflow conditions exist in s3_srvr.c,     ssl_sess.c, and t1_lib.c due to improper use of pointer     arithmetic for heap-buffer boundary checks. An     unauthenticated, remote attacker can exploit this to     cause a denial of service. (CVE-2016-2177)

  - An information disclosure vulnerability exists in the     dsa_sign_setup() function in dsa_ossl.c due to a failure     to properly ensure the use of constant-time operations.
    An unauthenticated, remote attacker can exploit this,     via a timing side-channel attack, to disclose DSA key     information. (CVE-2016-2178)

  - An out-of-bounds read error exists in the X.509 Public     Key Infrastructure Time-Stamp Protocol (TSP)     implementation. An unauthenticated, remote attacker can     exploit this, via a crafted time-stamp file that is     mishandled by the 'openssl ts' command, to cause     denial of service or to disclose sensitive information.
    (CVE-2016-2180)

  - An overflow condition exists in the BN_bn2dec() function     in bn_print.c due to improper validation of     user-supplied input when handling BIGNUM values. An     unauthenticated, remote attacker can exploit this to     crash the process. (CVE-2016-2182)

  - A vulnerability exists, known as SWEET32, in the 3DES     and Blowfish algorithms due to the use of weak 64-bit     block ciphers by default. A man-in-the-middle attacker     who has sufficient resources can exploit this     vulnerability, via a 'birthday' attack, to detect a     collision that leaks the XOR between the fixed secret     and a known plaintext, allowing the disclosure of the     secret text, such as secure HTTPS cookies, and possibly     resulting in the hijacking of an authenticated session.
    (CVE-2016-2183)

  - A flaw exists in the tls_decrypt_ticket() function in     t1_lib.c due to improper handling of ticket HMAC     digests. An unauthenticated, remote attacker can exploit     this, via a ticket that is too short, to crash the     process, resulting in a denial of service.
    (CVE-2016-6302)

  - An integer overflow condition exists in the     MDC2_Update() function in mdc2dgst.c due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this to cause a heap-based     buffer overflow, resulting in a denial of service     condition or possibly the execution of arbitrary code.
    (CVE-2016-6303)

  - A flaw exists in the ssl_parse_clienthello_tlsext()     function in t1_lib.c due to improper handling of overly     large OCSP Status Request extensions from clients. An     unauthenticated, remote attacker can exploit this, via     large OCSP Status Request extensions, to exhaust memory     resources, resulting in a denial of service condition.
    (CVE-2016-6304)

  - A flaw exists in the SSL_peek() function in     rec_layer_s3.c due to improper handling of empty     records. An unauthenticated, remote attacker can exploit     this, by triggering a zero-length record in an SSL_peek     call, to cause an infinite loop, resulting in a denial     of service condition. (CVE-2016-6305)

  - An out-of-bounds read error exists in the certificate     parser that allows an unauthenticated, remote attacker     to cause a denial of service via crafted certificate     operations. (CVE-2016-6306)

  - A denial of service vulnerability exists in the     state-machine implementation due to a failure to check     for an excessive length before allocating memory. An     unauthenticated, remote attacker can exploit this, via a     crafted TLS message, to exhaust memory resources.
    (CVE-2016-6307)

Note that these issues only affects devices with J-Web or the SSL service for JUNOScript enabled.

The remote host is affected by the vulnerability described in GLSA-201612-16 (OpenSSL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenSSL. Please review       the CVE identifiers and the International Association for Cryptologic       Research&rsquo;s (IACR) paper, &ldquo;Make Sure DSA Signing Exponentiations       Really are Constant-Time&rdquo; for further details.
  Impact :

    Remote attackers could cause a Denial of Service condition or have other       unspecified impacts. Additionally, a time based side-channel attack may       allow a local attacker to recover a private DSA key.
  Workaround :

    There is no known workaround at this time.

According to its banner, the version of OpenSSL on the remote host is 1.0.1 prior to 1.0.1u, or 1.0.2 prior to 1.0.2i.  It is therefore affected by the following vulnerabilities :

 - A flaw exists in 'ssl/s3_srvr.c', 'ssl/ssl_sess.c', and 'ssl/t1_lib.c' that may under certain circumstances lead to integer overflows and allow an attacker to have an unspecified impact. (CVE-2016-2177)
 - A flaw exists in 'crypto/dsa/dsa_ossl.c' that is triggered as the DSA signing algorithm does not properly run in constant time.  This may potentially allow a context-dependent attacker to conduct e.g. a side channel attack and gain unauthorized access to DSA key information. (CVE-2016-2178)
 - A flaw exists that is due to the system not handling fragmented DTLS buffered messages correctly.  There are two scenarios where messages could result in the queue not being cleared and memory not being freed.  The first occurs when a full message is received after a fragment of the same message, and the system uses the full message while ignoring the fragmented message without removing it from queue.  The second occurs when a peer sends a 'future' message with extraneous packets containing a sequence number higher than the Finished message, resulting in the packets not being removed from queue.  With a saturation of either type of message, a remote attacker can exhaust up to 1500k of memory per connection, exhausting memory leading to a remote denial of service. (CVE-2016-2179)
 - An out-of-bounds read flaw exists in the 'TS_OBJ_print_bio()' function in 'crypto/ts/ts_lib.c'.  This may allow a context-dependent attacker to have an unspecified impact that may potentially include crashing a process linked against the library or disclosing memory contents. (CVE-2016-2180)
 - A flaw exists in the DTLS implementation that is triggered when handling epoch sequence numbers in records.  This may allow a remote attacker to cause legitimate packets to be dropped. (CVE-2016-2181)
 - An overflow condition exists in the 'BN_bn2dec()' function in 'crypto/bn/bn_print.c'.  The issue is triggered as certain input is not properly validated when handling BIGNUM values. This may allow a context-dependent attacker to cause a buffer overflow, resulting in a denial of service in a process linked against the library. (CVE-2016-2182)
 - A flaw exists in the 'tls_decrypt_ticket()' function in 'ssl/t1_lib.c' that is triggered during the handling of ticket HMAC digest.  This may allow a remote attacker to crash the service. (CVE-2016-6302)
 - An overflow condition exists in the 'MDC2_Update()' function in 'crypto/mdc2/mdc2dgst.c' that is triggered as certain input is not properly validated.  This may allow a context-dependent attacker to cause a heap-based buffer overflow, crashing a process linked against the library or potentially allowing the execution of arbitrary code. (CVE-2016-6303)
 - A flaw exists in the 'ssl_parse_clienthello_tlsext()' function in 'ssl/t1_lib.c' that is triggered when handling overly large OCSP Status Request extensions from clients.  This may allow a remote attacker to exhaust available memory in a process linked against the library. (CVE-2016-6304)
 - An out-of-bounds read flaw exists that is triggered when handling client certificate, client certificate request, and server certificate messages.  This may allow a remote attacker to potentially crash a process linked against the library. (CVE-2016-6306)

ID	Name	Product	Family	Published	Updated	Severity
94095	OracleVM 3.2 : openssl (OVMSA-2016-0141)	Nessus	OracleVM Local Security Checks	10/17/2016	1/4/2021	critical
96771	MySQL Enterprise Monitor 3.3.x < 3.3.1.1112 Multiple Vulnerabilities (SWEET32) (January 2017 CPU)	Nessus	CGI abuses	1/25/2017	11/13/2019	critical
99810	EulerOS 2.0 SP1 : openssl (EulerOS-SA-2016-1047)	Nessus	Huawei Local Security Checks	5/1/2017	1/6/2021	high
99930	Oracle Secure Global Desktop Multiple Vulnerabilities (April 2017 CPU) (SWEET32)	Nessus	Misc.	5/2/2017	5/14/2023	critical
96824	RHEL 6 : JBoss Core Services (RHSA-2017:0193)	Nessus	Red Hat Local Security Checks	1/27/2017	10/24/2019	critical
96316	Juniper Junos Multiple OpenSSL Vulnerabilities (JSA10759) (SWEET32)	Nessus	Junos Local Security Checks	1/5/2017	8/10/2018	critical
95602	GLSA-201612-16 : OpenSSL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	12/7/2016	1/11/2021	critical
9625	OpenSSL 1.0.1 < 1.0.1u / 1.0.2 < 1.0.2i Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	10/6/2016	3/6/2019	high

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