The version of OpenSSL installed on the remote host is prior to 1.0.1s. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.1s advisory.

  - The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires     a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA     data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a     Bleichenbacher RSA padding oracle, aka a DROWN attack. (CVE-2016-0800)

  - The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g     improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow     and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a     large amount of ASN.1 data, a different vulnerability than CVE-2016-2842. (CVE-2016-0799)

  - Memory leak in the SRP_VBASE_get_by_user implementation in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before     1.0.2g allows remote attackers to cause a denial of service (memory consumption) by providing an invalid     username in a connection attempt, related to apps/s_server.c and crypto/srp/srp_vfy.c. (CVE-2016-0798)

  - Multiple integer overflows in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g allow remote attackers     to cause a denial of service (heap memory corruption or NULL pointer dereference) or possibly have     unspecified other impact via a long digit string that is mishandled by the (1) BN_dec2bn or (2) BN_hex2bn     function, related to crypto/bn/bn.h and crypto/bn/bn_print.c. (CVE-2016-0797)

  - Double free vulnerability in the dsa_priv_decode function in crypto/dsa/dsa_ameth.c in OpenSSL 1.0.1     before 1.0.1s and 1.0.2 before 1.0.2g allows remote attackers to cause a denial of service (memory     corruption) or possibly have unspecified other impact via a malformed DSA private key. (CVE-2016-0705)

  - The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2     before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which     makes it easier for local users to discover RSA keys by running a crafted application on the same Intel     Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a CacheBleed attack.
    (CVE-2016-0702)

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

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-0302 advisory.

    - fix CVE-2014-3570 - Bignum squaring may produce incorrect results
    - fix CVE-2014-3571 - DTLS segmentation fault in dtls1_get_record
    - fix CVE-2014-3572 - ECDHE silently downgrades to ECDH [Client]
    - fix CVE-2016-0797 - heap corruption in BN_hex2bn and BN_dec2bn
    - fix CVE-2015-3197 - SSLv2 ciphersuite enforcement

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

This update for openssl fixes various security issues :

Security issues fixed :

  - CVE-2016-0800 aka the 'DROWN' attack (bsc#968046):
    OpenSSL was vulnerable to a cross-protocol attack that     could lead to decryption of TLS sessions by using a     server supporting SSLv2 and EXPORT cipher suites as a     Bleichenbacher RSA padding oracle.

    This update changes the openssl library to :

  - Disable SSLv2 protocol support by default. This can be     overridden by setting the environment variable     'OPENSSL_ALLOW_SSL2' or by using SSL_CTX_clear_options     using the SSL_OP_NO_SSLv2 flag.

    Note that various services and clients had already     disabled SSL protocol 2 by default previously.

  - Disable all weak EXPORT ciphers by default. These can be     reenabled if required by old legacy software using the     environment variable 'OPENSSL_ALLOW_EXPORT'.

  - CVE-2016-0702 aka the 'CacheBleed' attack. (bsc#968050)     Various changes in the modular exponentation code were     added that make sure that it is not possible to recover     RSA secret keys by analyzing cache-bank conflicts on the     Intel Sandy-Bridge microarchitecture.

    Note that this was only exploitable if the malicious     code was running on the same hyper threaded Intel Sandy     Bridge processor as the victim thread performing     decryptions.

  - CVE-2016-0705 (bnc#968047): A double free() bug in the     DSA ASN1 parser code was fixed that could be abused to     facilitate a denial-of-service attack.

  - CVE-2016-0797 (bnc#968048): The BN_hex2bn() and     BN_dec2bn() functions had a bug that could result in an     attempt to de-reference a NULL pointer leading to     crashes. This could have security consequences if these     functions were ever called by user applications with     large untrusted hex/decimal data. Also, internal usage     of these functions in OpenSSL uses data from config     files or application command line arguments. If user     developed applications generated config file data based     on untrusted data, then this could have had security     consequences as well.

  - CVE-2016-0798 (bnc#968265) The SRP user database lookup     method SRP_VBASE_get_by_user() had a memory leak that     attackers could abuse to facility DoS attacks. To     mitigate the issue, the seed handling in     SRP_VBASE_get_by_user() was disabled even if the user     has configured a seed. Applications are advised to     migrate to SRP_VBASE_get1_by_user().

  - CVE-2016-0799 (bnc#968374) On many 64 bit systems, the     internal fmtstr() and doapr_outch() functions could     miscalculate the length of a string and attempt to     access out-of-bounds memory locations. These problems     could have enabled attacks where large amounts of     untrusted data is passed to the BIO_*printf functions.
    If applications use these functions in this way then     they could have been vulnerable. OpenSSL itself uses     these functions when printing out human-readable dumps     of ASN.1 data. Therefore applications that print this     data could have been vulnerable if the data is from     untrusted sources. OpenSSL command line applications     could also have been vulnerable when they print out     ASN.1 data, or if untrusted data is passed as command     line arguments. Libssl is not considered directly     vulnerable.

  - CVE-2015-3197 (bsc#963415): The SSLv2 protocol did not     block disabled ciphers.

Note that the March 1st 2016 release also references following CVEs that were fixed by us with CVE-2015-0293 in 2015 :

  - CVE-2016-0703 (bsc#968051): This issue only affected     versions of OpenSSL prior to March 19th 2015 at which     time the code was refactored to address vulnerability     CVE-2015-0293. It would have made the above 'DROWN'     attack much easier.

  - CVE-2016-0704 (bsc#968053): 'Bleichenbacher oracle in     SSLv2' This issue only affected versions of OpenSSL     prior to March 19th 2015 at which time the code was     refactored to address vulnerability CVE-2015-0293. It     would have made the above 'DROWN' attack much easier.

Also the following bug was fixed :

  - Ensure that OpenSSL doesn't fall back to the default     digest algorithm (SHA1) in case a non-FIPS algorithm was     negotiated while running in FIPS mode. Instead, OpenSSL     will refuse the session. (bnc#958501)

This update was imported from the SUSE:SLE-12-SP1:Update update project.

The version of Oracle MySQL installed on the remote host is 5.6.x prior to 5.6.30. It is, therefore, affected by the following vulnerabilities :

  - A cipher algorithm downgrade vulnerability exists in the     bundled version of OpenSSL 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)

  - An unspecified flaw exists in the Pluggable     Authentication subcomponent that allows an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2016-0639)

  - An unspecified flaw exists in the Federated subcomponent     that allows a local attacker to impact integrity and     availability. (CVE-2016-0642)

  - An unspecified flaw exists in the DML subcomponent that     allows a local attacker to disclose potentially     sensitive information. (CVE-2016-0643)

  - An unspecified flaw exists in the FTS subcomponent that     allows a local attacker to cause a denial of service     condition. (CVE-2016-0647)

  - An unspecified flaw exists in the PS subcomponent that     allows a local attacker to cause a denial of service     condition. (CVE-2016-0648)

  - An unspecified flaw exists in the InnoDB subcomponent     that allows a local attacker to cause a denial of     service condition. (CVE-2016-0655)

  - An unspecified flaw exists in the Security: Privileges     subcomponent that allows a local attacker to cause a     denial of service condition. (CVE-2016-0666)

  - A key disclosure vulnerability exists in the bundled     version of OpenSSL 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 double-free error exists in the bundled version of     OpenSSL 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 bundled     version of OpenSSL 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 in the bundled     version of OpenSSL 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 in the bundled     version of OpenSSL that allow a remote attacker to cause     a denial of service condition or the execution of     arbitrary code. (CVE-2016-0799)

  - A flaw exists in the bundled version of OpenSSL that     allows a cross-protocol Bleichenbacher padding oracle     attack known as DROWN (Decrypting RSA with Obsolete and     Weakened eNcryption). This vulnerability exists due to a     flaw in the Secure Sockets Layer Version 2 (SSLv2)     implementation, and it allows captured TLS traffic to be     decrypted. A man-in-the-middle attacker can exploit this     to decrypt the TLS connection by utilizing previously     captured traffic and weak cryptography along with a     series of specially crafted connections to an SSLv2     server that uses the same private key. (CVE-2016-0800)

  - A man-in-the-middle spoofing vulnerability exists due to     the server hostname not being verified to match a domain     name in the Subject's Common Name (CN) or SubjectAltName     field of the X.509 certificate. A man-in-the-middle     attacker can exploit this, by spoofing the TLS/SSL     server via a certificate that appears valid, to disclose     sensitive information or manipulate transmitted data.
    (CVE-2016-2047)

  - An unspecified flaw exists in the Security: Encryption     subcomponent that allows an unauthenticated, remote     attacker to disclose potentially sensitive information.
    (CVE-2016-3452)

  - An unspecified flaw exists in the Connection     subcomponent that allows an unauthenticated, remote     attacker to disclose potentially sensitive information.
    (CVE-2016-5444)

The version of Oracle MySQL installed on the remote host is 5.7.x prior to 5.7.12. It is, therefore, affected by the following vulnerabilities :

  - A cipher algorithm downgrade vulnerability exists in the     bundled version of OpenSSL 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)

  - An unspecified flaw exists in the Pluggable     Authentication subcomponent that allows an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2016-0639)

  - An unspecified flaw exists in the Federated subcomponent     that allows a local attacker to impact integrity and     availability. (CVE-2016-0642)

  - An unspecified flaw exists in the DML subcomponent that     allows a local attacker to disclose potentially     sensitive information. (CVE-2016-0643)

  - An unspecified flaw exists in the FTS subcomponent that     allows a local attacker to cause a denial of service     condition. (CVE-2016-0647)

  - An unspecified flaw exists in the PS subcomponent that     allows a local attacker to cause a denial of service     condition. (CVE-2016-0648)

  - An unspecified flaw exists in the InnoDB subcomponent     that allows a local attacker to cause a denial of     service condition. (CVE-2016-0655)

  - An unspecified flaw exists in the JSON subcomponent that     allows a local attacker to disclose potentially     sensitive information. (CVE-2016-0657)

  - An unspecified flaw exists in the Optimizer subcomponent     that allows a local attacker to cause a denial of     service condition. (CVE-2016-0659)

  - An unspecified flaw exists in the Partition subcomponent     that allows a local attacker to cause a denial of     service condition. (CVE-2016-0662)

  - An unspecified flaw exists in the Security: Privileges     subcomponent that allows a local attacker to cause a     denial of service condition. (CVE-2016-0666)

  - An unspecified flaw exists in the Locking subcomponent     that allows a local attacker to cause a denial of     service condition. (CVE-2016-0667)

  - A key disclosure vulnerability exists in the bundled     version of OpenSSL 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 double-free error exists in the bundled version of     OpenSSL 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 bundled     version of OpenSSL 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 in the bundled     version of OpenSSL 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 in the bundled     version of OpenSSL that allow a remote attacker to cause     a denial of service condition or the execution of     arbitrary code. (CVE-2016-0799)

  - A flaw exists in the bundled version of OpenSSL that     allows a cross-protocol Bleichenbacher padding oracle     attack known as DROWN (Decrypting RSA with Obsolete and     Weakened eNcryption). This vulnerability exists due to a     flaw in the Secure Sockets Layer Version 2 (SSLv2)     implementation, and it allows captured TLS traffic to be     decrypted. A man-in-the-middle attacker can exploit this     to decrypt the TLS connection by utilizing previously     captured traffic and weak cryptography along with a     series of specially crafted connections to an SSLv2     server that uses the same private key. (CVE-2016-0800)

  - A man-in-the-middle spoofing vulnerability exists due to     the server hostname not being verified to match a domain     name in the Subject's Common Name (CN) or SubjectAltName     field of the X.509 certificate. A man-in-the-middle     attacker can exploit this, by spoofing the TLS/SSL     server via a certificate that appears valid, to disclose     sensitive information or manipulate transmitted data.
    (CVE-2016-2047)

  - An unspecified flaw exists in the Optimizer subcomponent     that allow an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-3440,     CVE-2017-10378)

  - An unspecified flaw exists in the Connection     subcomponent that allows an unauthenticated, remote     attacker to disclose potentially sensitive information.
    (CVE-2016-5444)

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

The remote Oracle Linux 6 / 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2016-0372 advisory.

    - fix CVE-2015-0293 - triggerable assert in SSLv2 server
    - fix CVE-2015-3197 - SSLv2 ciphersuite enforcement

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

This update for libopenssl0_9_8 fixes the following issues :

  - CVE-2016-0800 aka the 'DROWN' attack (bsc#968046):
    OpenSSL was vulnerable to a cross-protocol attack that     could lead to decryption of TLS sessions by using a     server supporting SSLv2 and EXPORT cipher suites as a     Bleichenbacher RSA padding oracle.

    This update changes the openssl library to :

  - Disable SSLv2 protocol support by default.

    This can be overridden by setting the environment     variable 'OPENSSL_ALLOW_SSL2' or by using     SSL_CTX_clear_options using the SSL_OP_NO_SSLv2 flag.

    Note that various services and clients had already     disabled SSL protocol 2 by default previously.

  - Disable all weak EXPORT ciphers by default. These can be     reenabled if required by old legacy software using the     environment variable 'OPENSSL_ALLOW_EXPORT'.

  - CVE-2016-0797 (bnc#968048): The BN_hex2bn() and     BN_dec2bn() functions had a bug that could result in an     attempt to de-reference a NULL pointer leading to     crashes. This could have security consequences if these     functions were ever called by user applications with     large untrusted hex/decimal data. Also, internal usage     of these functions in OpenSSL uses data from config     files or application command line arguments. If user     developed applications generated config file data based     on untrusted data, then this could have had security     consequences as well.

  - CVE-2016-0799 (bnc#968374) On many 64 bit systems, the     internal fmtstr() and doapr_outch() functions could     miscalculate the length of a string and attempt to     access out-of-bounds memory locations. These problems     could have enabled attacks where large amounts of     untrusted data is passed to the BIO_*printf functions.
    If applications use these functions in this way then     they could have been vulnerable. OpenSSL itself uses     these functions when printing out human-readable dumps     of ASN.1 data. Therefore applications that print this     data could have been vulnerable if the data is from     untrusted sources. OpenSSL command line applications     could also have been vulnerable when they print out     ASN.1 data, or if untrusted data is passed as command     line arguments. Libssl is not considered directly     vulnerable.

  - The package was updated to 0.9.8zh :

  - fixes many security vulnerabilities (not separately     listed): CVE-2015-3195, CVE-2015-1788, CVE-2015-1789,     CVE-2015-1790, CVE-2015-1792, CVE-2015-1791,     CVE-2015-0286, CVE-2015-0287, CVE-2015-0289,     CVE-2015-0293, CVE-2015-0209, CVE-2015-0288,     CVE-2014-3571, CVE-2014-3569, CVE-2014-3572,     CVE-2015-0204, CVE-2014-8275, CVE-2014-3570,     CVE-2014-3567, CVE-2014-3568, CVE-2014-3566,     CVE-2014-3510, CVE-2014-3507, CVE-2014-3506,     CVE-2014-3505, CVE-2014-3508, CVE-2014-0224,     CVE-2014-0221, CVE-2014-0195, CVE-2014-3470,     CVE-2014-0076, CVE-2013-0169, CVE-2013-0166

  - avoid running OPENSSL_config twice. This avoids breaking     engine loading. (boo#952871, boo#967787)

  - fix CVE-2015-3197 (boo#963415)

  - SSLv2 doesn't block disabled ciphers

The remote host is affected by the vulnerability described in GLSA-201603-15 (OpenSSL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenSSL, the worst       being a cross-protocol attack called DROWN that could lead to the       decryption of TLS sessions. Please review the CVE identifiers referenced       below for details.
  Impact :

    A remote attacker could decrypt TLS sessions by using a server       supporting SSLv2 and EXPORT cipher suites as a       Bleichenbacher RSA padding oracle, cause a Denial of Service condition,       obtain sensitive information from memory and (in rare circumstances)       recover RSA keys.
  Workaround :

    A workaround for DROWN is disabling the SSLv2 protocol on all SSL/TLS       servers.

The version of MySQL running on the remote host is 5.7.x prior to 5.7.12. It is, therefore, affected by multiple vulnerabilities :

  - A cipher algorithm downgrade vulnerability exists in the     bundled version of OpenSSL 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)

  - An unspecified flaw exists in the Pluggable     Authentication subcomponent that allows an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2016-0639)

  - An unspecified flaw exists in the Federated subcomponent     that allows an authenticated, remote attacker to impact     integrity and availability. (CVE-2016-0642)

  - An unspecified flaw exists in the DML subcomponent that     allows an authenticated, remote attacker to disclose     sensitive information. (CVE-2016-0643)

  - An unspecified flaw exists in the FTS subcomponent that     allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0647)

  - An unspecified flaw exists in the PS subcomponent that     allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0647)

  - An unspecified flaw exists in the InnoDB subcomponent     that allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0655)

  - An unspecified flaw exists in the JSON subcomponent that     allows an authenticated, remote attacker to disclose     sensitive information. (CVE-2016-0657)

  - An unspecified flaw exists in the Optimizer subcomponent     that allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0659)

  - An unspecified flaw exists in the Partition subcomponent     that allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0662)

  - An unspecified flaw exists in the Security: Privileges     subcomponent that allows an authenticated, remote     attacker to cause a denial of service condition.
    (CVE-2016-0666)

  - An unspecified flaw exists in the Locking subcomponent     that allows an authenticated, remote attacker to cause a     denial of service condition. (CVE-2016-0667)

  - A key disclosure vulnerability exists in the bundled     version of OpenSSL 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 double-free error exists in the bundled version of     OpenSSL 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 bundled     version of OpenSSL 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 in the bundled     version of OpenSSL 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 in the bundled     version of OpenSSL that allow a remote attacker to cause     a denial of service condition or the execution of     arbitrary code. (CVE-2016-0799)

  - A flaw exists in the bundled version of OpenSSL that     allows a cross-protocol Bleichenbacher padding oracle     attack known as DROWN (Decrypting RSA with Obsolete and     Weakened eNcryption). This vulnerability exists due to a     flaw in the Secure Sockets Layer Version 2 (SSLv2)     implementation, and it allows captured TLS traffic to be     decrypted. A man-in-the-middle attacker can exploit this     to decrypt the TLS connection by utilizing previously     captured traffic and weak cryptography along with a     series of specially crafted connections to an SSLv2     server that uses the same private key. (CVE-2016-0800)

  - A man-in-the-middle spoofing vulnerability exists due to     the server hostname not being verified to match a domain     name in the Subject's Common Name (CN) or SubjectAltName     field of the X.509 certificate. A man-in-the-middle     attacker can exploit this, by spoofing the TLS/SSL     server via a certificate that appears valid, to disclose     sensitive information or manipulate transmitted data.
    (CVE-2016-2047)

  - An unspecified flaw exists in the Optimizer subcomponent     that allow an authenticated, remote attacker to cause a     denial of service condition. (CVE-2017-10378)

  - A flaw exists related to certificate validation due to     the server hostname not being verified to match a domain     name in the X.509 certificate. A man-in-the-middle     attacker can exploit this, by spoofing the TLS/SSL     server via a certificate that appears valid, to disclose     sensitive information or manipulate data.

  - An integer overflow condition exists that is triggered     due to improper validation of user-supplied input when     processing client handshakes. An authenticated, remote     attacker can exploit this to cause the server to exit,     resulting in a denial of service condition.

  - An information disclosure vulnerability exists due to     overly verbose error messages returning part of the SQL     statement that produced them. An authenticated, remote     attacker can exploit this to disclose sensitive     information.

  - A flaw exists in InnoDB that is triggered during the     handling of an ALTER TABLE or ADD COLUMN operation on a     table with virtual columns. An authenticated, remote     attacker can exploit this to crash the server, resulting     in a denial of service condition.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2016:0303 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)     and Transport Layer Security (TLS v1) protocols, as well as a     full-strength, general purpose cryptography library.

    A padding oracle flaw was found in the Secure Sockets Layer version 2.0     (SSLv2) protocol. An attacker can potentially use this flaw to decrypt     RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol     version, allowing them to decrypt such connections. This cross-protocol     attack is publicly referred to as DROWN. (CVE-2016-0800)

    Note: This issue was addressed by disabling the SSLv2 protocol by default     when using the 'SSLv23' connection methods, and removing support for weak     SSLv2 cipher suites. For more information, refer to the knowledge base     article linked to in the References section.

    It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2     connection handshakes that indicated non-zero clear key length for     non-export cipher suites. An attacker could use this flaw to decrypt     recorded SSLv2 sessions with the server by using it as a decryption     oracle.(CVE-2016-0703)

    It was discovered that the SSLv2 protocol implementation in OpenSSL did     not properly implement the Bleichenbacher protection for export cipher     suites. An attacker could use a SSLv2 server using OpenSSL as a     Bleichenbacher oracle. (CVE-2016-0704)

    Note: The CVE-2016-0703 and CVE-2016-0704 issues could allow for more     efficient exploitation of the CVE-2016-0800 issue via the DROWN attack.

    A denial of service flaw was found in the way OpenSSL handled SSLv2     handshake messages. A remote attacker could use this flaw to cause a     TLS/SSL server using OpenSSL to exit on a failed assertion if it had both     the SSLv2 protocol and EXPORT-grade cipher suites enabled. (CVE-2015-0293)

    A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2     ciphers that have been disabled on the server. This could result in weak     SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to     man-in-the-middle attacks. (CVE-2015-3197)

    Red Hat would like to thank the OpenSSL project for reporting these issues.
    Upstream acknowledges Nimrod Aviram and Sebastian Schinzel as the original     reporters of CVE-2016-0800 and CVE-2015-3197; David Adrian (University of     Michigan) and J. Alex Halderman (University of Michigan) as the original     reporters of CVE-2016-0703 and CVE-2016-0704; and Sean Burford (Google) and     Emilia Ksper (OpenSSL development team) as the original reporters of     CVE-2015-0293.

    All openssl users are advised to upgrade to these updated packages, which     contain backported patches to correct these issues. For the update to take     effect, all services linked to the OpenSSL library must be restarted, or     the system rebooted.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

A padding oracle flaw was found in the Secure Sockets Layer version 2.0 (SSLv2) protocol. An attacker can potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections.
This cross-protocol attack is publicly referred to as DROWN.
(CVE-2016-0800)

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non- export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle.(CVE-2016-0703)

It was discovered that the SSLv2 protocol implementation in OpenSSL did not properly implement the Bleichenbacher protection for export cipher suites. An attacker could use a SSLv2 server using OpenSSL as a Bleichenbacher oracle. (CVE-2016-0704)

Note: The CVE-2016-0703 and CVE-2016-0704 issues could allow for more efficient exploitation of the CVE-2016-0800 issue via the DROWN attack.

A denial of service flaw was found in the way OpenSSL handled SSLv2 handshake messages. A remote attacker could use this flaw to cause a TLS/SSL server using OpenSSL to exit on a failed assertion if it had both the SSLv2 protocol and EXPORT-grade cipher suites enabled.
(CVE-2015-0293)

A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2 ciphers that have been disabled on the server. This could result in weak SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to man-in-the-middle attacks. (CVE-2015-3197)

For the update to take effect, all services linked to the openssl098e library must be restarted, or the system rebooted.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
89081	OpenSSL 1.0.1 < 1.0.1s Multiple Vulnerabilities	Nessus	Web Servers	2016/3/2	2024/10/23	critical
89065	Oracle Linux 5 : openssl (ELSA-2016-0302)	Nessus	Oracle Linux Local Security Checks	2016/3/2	2025/4/29	medium
89091	openSUSE Security Update : openssl (openSUSE-2016-289) (DROWN)	Nessus	SuSE Local Security Checks	2016/3/3	2021/1/19	critical
90832	Oracle MySQL 5.6.x < 5.6.30 Multiple Vulnerabilities (April 2016 CPU) (July 2016 CPU) (DROWN)	Nessus	Databases	2016/5/2	2020/6/3	critical
90834	Oracle MySQL 5.7.x < 5.7.12 Multiple Vulnerabilities (RPM Check) (April 2016 CPU) (July 2016 CPU) (October 2017 CPU) (DROWN)	Nessus	Databases	2016/5/2	2020/6/3	critical
89770	Oracle Linux 6 / 7 : openssl098e (ELSA-2016-0372)	Nessus	Oracle Linux Local Security Checks	2016/3/9	2025/2/18	high
89651	openSUSE Security Update : libopenssl0_9_8 (openSUSE-2016-294) (DROWN) (FREAK) (POODLE)	Nessus	SuSE Local Security Checks	2016/3/4	2022/12/5	critical
90053	GLSA-201603-15 : OpenSSL: Multiple vulnerabilities (DROWN)	Nessus	Gentoo Local Security Checks	2016/3/21	2021/1/11	critical
90684	MySQL 5.7.x < 5.7.12 Multiple Vulnerabilities (DROWN)	Nessus	Databases	2016/4/22	2019/11/19	critical
89069	RHEL 6 : openssl (RHSA-2016:0303)	Nessus	Red Hat Local Security Checks	2016/3/2	2025/4/15	medium
89825	Scientific Linux Security Update : openssl098e on SL6.x, SL7.x i386/x86_64 (20160309) (DROWN)	Nessus	Scientific Linux Local Security Checks	2016/3/10	2021/1/14	medium

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