March 2016 - openSUSE Security Announce

[security-announce] openSUSE-SU-2016:0628-1: important: Security update for openssl
by opensuse-security＠opensuse.org 02 Mar '16

02 Mar '16

openSUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: openSUSE-SU-2016:0628-1 Rating: important References: #958501 #963415 #968046 #968047 #968048 #968050 #968051 #968053 #968265 #968374 Cross-References: CVE-2015-3197 CVE-2016-0702 CVE-2016-0703 CVE-2016-0704 CVE-2016-0705 CVE-2016-0797 CVE-2016-0798 CVE-2016-0799 CVE-2016-0800 Affected Products: openSUSE Leap 42.1 ______________________________________________________________________________ An update that solves 9 vulnerabilities and has one errata is now available. Description: 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. Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE Leap 42.1: zypper in -t patch openSUSE-2016-289=1 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE Leap 42.1 (i586 x86_64): libopenssl-devel-1.0.1i-12.1 libopenssl1_0_0-1.0.1i-12.1 libopenssl1_0_0-debuginfo-1.0.1i-12.1 libopenssl1_0_0-hmac-1.0.1i-12.1 openssl-1.0.1i-12.1 openssl-debuginfo-1.0.1i-12.1 openssl-debugsource-1.0.1i-12.1 - openSUSE Leap 42.1 (x86_64): libopenssl-devel-32bit-1.0.1i-12.1 libopenssl1_0_0-32bit-1.0.1i-12.1 libopenssl1_0_0-debuginfo-32bit-1.0.1i-12.1 libopenssl1_0_0-hmac-32bit-1.0.1i-12.1 - openSUSE Leap 42.1 (noarch): openssl-doc-1.0.1i-12.1 References: https://www.suse.com/security/cve/CVE-2015-3197.html https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0703.html https://www.suse.com/security/cve/CVE-2016-0704.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0798.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/958501 https://bugzilla.suse.com/963415 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968050 https://bugzilla.suse.com/968051 https://bugzilla.suse.com/968053 https://bugzilla.suse.com/968265 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] openSUSE-SU-2016:0627-1: important: Security update for openssl
by opensuse-security＠opensuse.org 02 Mar '16

02 Mar '16

openSUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: openSUSE-SU-2016:0627-1 Rating: important References: #952871 #968046 #968047 #968048 #968050 #968265 #968374 Cross-References: CVE-2016-0702 CVE-2016-0705 CVE-2016-0797 CVE-2016-0798 CVE-2016-0799 CVE-2016-0800 Affected Products: openSUSE 13.2 ______________________________________________________________________________ An update that solves 6 vulnerabilities and has one errata is now available. Description: This update for openssl fixes the following 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. Please also note that we built the 13.2 openSUSE openssl already with "no-ssl2". * 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 - We're unaffected by CVE-2016-0799 (boo#968374) because we use glibc's printf implementation instead of the built in one Bugs fixed: - avoid running OPENSSL_config twice. This avoids breaking engine loading. (boo#952871) Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE 13.2: zypper in -t patch openSUSE-2016-288=1 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE 13.2 (i586 x86_64): libopenssl-devel-1.0.1k-2.33.1 libopenssl1_0_0-1.0.1k-2.33.1 libopenssl1_0_0-debuginfo-1.0.1k-2.33.1 libopenssl1_0_0-hmac-1.0.1k-2.33.1 openssl-1.0.1k-2.33.1 openssl-debuginfo-1.0.1k-2.33.1 openssl-debugsource-1.0.1k-2.33.1 - openSUSE 13.2 (x86_64): libopenssl-devel-32bit-1.0.1k-2.33.1 libopenssl1_0_0-32bit-1.0.1k-2.33.1 libopenssl1_0_0-debuginfo-32bit-1.0.1k-2.33.1 libopenssl1_0_0-hmac-32bit-1.0.1k-2.33.1 - openSUSE 13.2 (noarch): openssl-doc-1.0.1k-2.33.1 References: https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0798.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/952871 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968050 https://bugzilla.suse.com/968265 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] SUSE-SU-2016:0624-1: important: Security update for openssl
by opensuse-security＠opensuse.org 01 Mar '16

01 Mar '16

SUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:0624-1 Rating: important References: #952871 #963415 #967787 #968046 #968047 #968048 #968051 #968053 #968374 Cross-References: CVE-2015-3197 CVE-2016-0702 CVE-2016-0703 CVE-2016-0705 CVE-2016-0797 CVE-2016-0799 CVE-2016-0800 Affected Products: SUSE Studio Onsite 1.3 SUSE Linux Enterprise Software Development Kit 11-SP4 SUSE Linux Enterprise Server 11-SP4 SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Server 11-SP2-LTSS SUSE Linux Enterprise Desktop 11-SP4 SUSE Linux Enterprise Debuginfo 11-SP4 SUSE Linux Enterprise Debuginfo 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP2 ______________________________________________________________________________ An update that solves 7 vulnerabilities and has two fixes is now available. Description: This update for openssl fixes various security issues and bugs: 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-2016-0705 (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-2016-0799 (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 fixes the following bug: - Avoid running OPENSSL_config twice. This avoids breaking engine loading and also fixes a memory leak in libssl. (bsc#952871 bsc#967787) Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Studio Onsite 1.3: zypper in -t patch slestso13-openssl-12434=1 - SUSE Linux Enterprise Software Development Kit 11-SP4: zypper in -t patch sdksp4-openssl-12434=1 - SUSE Linux Enterprise Server 11-SP4: zypper in -t patch slessp4-openssl-12434=1 - SUSE Linux Enterprise Server 11-SP3-LTSS: zypper in -t patch slessp3-openssl-12434=1 - SUSE Linux Enterprise Server 11-SP2-LTSS: zypper in -t patch slessp2-openssl-12434=1 - SUSE Linux Enterprise Desktop 11-SP4: zypper in -t patch sledsp4-openssl-12434=1 - SUSE Linux Enterprise Debuginfo 11-SP4: zypper in -t patch dbgsp4-openssl-12434=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-openssl-12434=1 - SUSE Linux Enterprise Debuginfo 11-SP2: zypper in -t patch dbgsp2-openssl-12434=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Studio Onsite 1.3 (x86_64): libopenssl-devel-0.9.8j-0.89.1 - SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 ia64 ppc64 s390x x86_64): libopenssl-devel-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64): libopenssl0_9_8-0.9.8j-0.89.1 libopenssl0_9_8-hmac-0.9.8j-0.89.1 openssl-0.9.8j-0.89.1 openssl-doc-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP4 (ppc64 s390x x86_64): libopenssl0_9_8-32bit-0.9.8j-0.89.1 libopenssl0_9_8-hmac-32bit-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP4 (ia64): libopenssl0_9_8-x86-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 s390x x86_64): libopenssl0_9_8-0.9.8j-0.89.1 libopenssl0_9_8-hmac-0.9.8j-0.89.1 openssl-0.9.8j-0.89.1 openssl-doc-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (s390x x86_64): libopenssl0_9_8-32bit-0.9.8j-0.89.1 libopenssl0_9_8-hmac-32bit-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP2-LTSS (i586 s390x x86_64): libopenssl-devel-0.9.8j-0.89.1 libopenssl0_9_8-0.9.8j-0.89.1 libopenssl0_9_8-hmac-0.9.8j-0.89.1 openssl-0.9.8j-0.89.1 openssl-doc-0.9.8j-0.89.1 - SUSE Linux Enterprise Server 11-SP2-LTSS (s390x x86_64): libopenssl0_9_8-32bit-0.9.8j-0.89.1 libopenssl0_9_8-hmac-32bit-0.9.8j-0.89.1 - SUSE Linux Enterprise Desktop 11-SP4 (i586 x86_64): libopenssl0_9_8-0.9.8j-0.89.1 openssl-0.9.8j-0.89.1 - SUSE Linux Enterprise Desktop 11-SP4 (x86_64): libopenssl0_9_8-32bit-0.9.8j-0.89.1 - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64): openssl-debuginfo-0.9.8j-0.89.1 openssl-debugsource-0.9.8j-0.89.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64): openssl-debuginfo-0.9.8j-0.89.1 openssl-debugsource-0.9.8j-0.89.1 - SUSE Linux Enterprise Debuginfo 11-SP2 (i586 s390x x86_64): openssl-debuginfo-0.9.8j-0.89.1 openssl-debugsource-0.9.8j-0.89.1 References: https://www.suse.com/security/cve/CVE-2015-3197.html https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0703.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/952871 https://bugzilla.suse.com/963415 https://bugzilla.suse.com/967787 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968051 https://bugzilla.suse.com/968053 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] SUSE-SU-2016:0621-1: important: Security update for openssl
by opensuse-security＠opensuse.org 01 Mar '16

01 Mar '16

SUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:0621-1 Rating: important References: #952871 #963415 #968046 #968047 #968048 #968050 #968051 #968053 #968265 #968374 Cross-References: CVE-2015-3197 CVE-2016-0702 CVE-2016-0703 CVE-2016-0704 CVE-2016-0705 CVE-2016-0797 CVE-2016-0798 CVE-2016-0799 CVE-2016-0800 Affected Products: SUSE Linux Enterprise Server 11-SECURITY ______________________________________________________________________________ An update that solves 9 vulnerabilities and has one errata is now available. Description: This update for openssl fixes various security issues and bugs: 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. Bugs fixed: - Avoid running OPENSSL_config twice. This avoids breaking engine loading. (bsc#952871) Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 11-SECURITY: zypper in -t patch secsp3-openssl1-12429=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 11-SECURITY (i586 ia64 ppc64 s390x x86_64): libopenssl1-devel-1.0.1g-0.40.1 libopenssl1_0_0-1.0.1g-0.40.1 openssl1-1.0.1g-0.40.1 openssl1-doc-1.0.1g-0.40.1 - SUSE Linux Enterprise Server 11-SECURITY (ppc64 s390x x86_64): libopenssl1_0_0-32bit-1.0.1g-0.40.1 - SUSE Linux Enterprise Server 11-SECURITY (ia64): libopenssl1_0_0-x86-1.0.1g-0.40.1 References: https://www.suse.com/security/cve/CVE-2015-3197.html https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0703.html https://www.suse.com/security/cve/CVE-2016-0704.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0798.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/952871 https://bugzilla.suse.com/963415 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968050 https://bugzilla.suse.com/968051 https://bugzilla.suse.com/968053 https://bugzilla.suse.com/968265 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] SUSE-SU-2016:0620-1: important: Security update for openssl
by opensuse-security＠opensuse.org 01 Mar '16

01 Mar '16

SUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:0620-1 Rating: important References: #958501 #963415 #968046 #968047 #968048 #968050 #968051 #968053 #968265 #968374 Cross-References: CVE-2015-3197 CVE-2016-0702 CVE-2016-0703 CVE-2016-0704 CVE-2016-0705 CVE-2016-0797 CVE-2016-0798 CVE-2016-0799 CVE-2016-0800 Affected Products: SUSE Linux Enterprise Software Development Kit 12-SP1 SUSE Linux Enterprise Server 12-SP1 SUSE Linux Enterprise Desktop 12-SP1 ______________________________________________________________________________ An update that solves 9 vulnerabilities and has one errata is now available. Description: 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) Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Software Development Kit 12-SP1: zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-353=1 - SUSE Linux Enterprise Server 12-SP1: zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-353=1 - SUSE Linux Enterprise Desktop 12-SP1: zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-353=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12-SP1 (ppc64le s390x x86_64): libopenssl-devel-1.0.1i-44.1 openssl-debuginfo-1.0.1i-44.1 openssl-debugsource-1.0.1i-44.1 - SUSE Linux Enterprise Server 12-SP1 (ppc64le s390x x86_64): libopenssl1_0_0-1.0.1i-44.1 libopenssl1_0_0-debuginfo-1.0.1i-44.1 libopenssl1_0_0-hmac-1.0.1i-44.1 openssl-1.0.1i-44.1 openssl-debuginfo-1.0.1i-44.1 openssl-debugsource-1.0.1i-44.1 - SUSE Linux Enterprise Server 12-SP1 (s390x x86_64): libopenssl1_0_0-32bit-1.0.1i-44.1 libopenssl1_0_0-debuginfo-32bit-1.0.1i-44.1 libopenssl1_0_0-hmac-32bit-1.0.1i-44.1 - SUSE Linux Enterprise Server 12-SP1 (noarch): openssl-doc-1.0.1i-44.1 - SUSE Linux Enterprise Desktop 12-SP1 (x86_64): libopenssl1_0_0-1.0.1i-44.1 libopenssl1_0_0-32bit-1.0.1i-44.1 libopenssl1_0_0-debuginfo-1.0.1i-44.1 libopenssl1_0_0-debuginfo-32bit-1.0.1i-44.1 openssl-1.0.1i-44.1 openssl-debuginfo-1.0.1i-44.1 openssl-debugsource-1.0.1i-44.1 References: https://www.suse.com/security/cve/CVE-2015-3197.html https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0703.html https://www.suse.com/security/cve/CVE-2016-0704.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0798.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/958501 https://bugzilla.suse.com/963415 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968050 https://bugzilla.suse.com/968051 https://bugzilla.suse.com/968053 https://bugzilla.suse.com/968265 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] SUSE-SU-2016:0617-1: important: Security update for openssl
by opensuse-security＠opensuse.org 01 Mar '16

01 Mar '16

SUSE Security Update: Security update for openssl ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:0617-1 Rating: important References: #952871 #958501 #963415 #968046 #968047 #968048 #968050 #968051 #968053 #968265 #968374 Cross-References: CVE-2015-3197 CVE-2016-0702 CVE-2016-0703 CVE-2016-0704 CVE-2016-0705 CVE-2016-0797 CVE-2016-0798 CVE-2016-0799 CVE-2016-0800 Affected Products: SUSE Linux Enterprise Software Development Kit 12 SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Desktop 12 ______________________________________________________________________________ An update that solves 9 vulnerabilities and has two fixes is now available. Description: This update for openssl fixes various security issues and bugs: 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. Bugs fixed: - Avoid running OPENSSL_config twice. This avoids breaking engine loading. (bsc#952871) - 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 digest. (bnc#958501) Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Software Development Kit 12: zypper in -t patch SUSE-SLE-SDK-12-2016-352=1 - SUSE Linux Enterprise Server 12: zypper in -t patch SUSE-SLE-SERVER-12-2016-352=1 - SUSE Linux Enterprise Desktop 12: zypper in -t patch SUSE-SLE-DESKTOP-12-2016-352=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12 (ppc64le s390x x86_64): libopenssl-devel-1.0.1i-27.13.1 openssl-debuginfo-1.0.1i-27.13.1 openssl-debugsource-1.0.1i-27.13.1 - SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64): libopenssl1_0_0-1.0.1i-27.13.1 libopenssl1_0_0-debuginfo-1.0.1i-27.13.1 libopenssl1_0_0-hmac-1.0.1i-27.13.1 openssl-1.0.1i-27.13.1 openssl-debuginfo-1.0.1i-27.13.1 openssl-debugsource-1.0.1i-27.13.1 - SUSE Linux Enterprise Server 12 (s390x x86_64): libopenssl1_0_0-32bit-1.0.1i-27.13.1 libopenssl1_0_0-debuginfo-32bit-1.0.1i-27.13.1 libopenssl1_0_0-hmac-32bit-1.0.1i-27.13.1 - SUSE Linux Enterprise Server 12 (noarch): openssl-doc-1.0.1i-27.13.1 - SUSE Linux Enterprise Desktop 12 (x86_64): libopenssl1_0_0-1.0.1i-27.13.1 libopenssl1_0_0-32bit-1.0.1i-27.13.1 libopenssl1_0_0-debuginfo-1.0.1i-27.13.1 libopenssl1_0_0-debuginfo-32bit-1.0.1i-27.13.1 openssl-1.0.1i-27.13.1 openssl-debuginfo-1.0.1i-27.13.1 openssl-debugsource-1.0.1i-27.13.1 References: https://www.suse.com/security/cve/CVE-2015-3197.html https://www.suse.com/security/cve/CVE-2016-0702.html https://www.suse.com/security/cve/CVE-2016-0703.html https://www.suse.com/security/cve/CVE-2016-0704.html https://www.suse.com/security/cve/CVE-2016-0705.html https://www.suse.com/security/cve/CVE-2016-0797.html https://www.suse.com/security/cve/CVE-2016-0798.html https://www.suse.com/security/cve/CVE-2016-0799.html https://www.suse.com/security/cve/CVE-2016-0800.html https://bugzilla.suse.com/952871 https://bugzilla.suse.com/958501 https://bugzilla.suse.com/963415 https://bugzilla.suse.com/968046 https://bugzilla.suse.com/968047 https://bugzilla.suse.com/968048 https://bugzilla.suse.com/968050 https://bugzilla.suse.com/968051 https://bugzilla.suse.com/968053 https://bugzilla.suse.com/968265 https://bugzilla.suse.com/968374 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-security-announce+help(a)opensuse.org

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[security-announce] Todays openssl release - "DROWN" CVE-2016-0800 and "Cachebleed"
by Marcus Meissner 01 Mar '16

01 Mar '16

Hi, The openssl team is just releasing security updates fixing various issues in openssl. The most relevant issue is called "DROWN", http://drownattack.com/ , CVE-2016-0800 Basically the SSLv2 protocol, especially when used with weak (EXPORT) ciphers is vulnerable to technically feasible Man-in-the-Middle Attacks. There is no choice but to switch SSLv2 and also EXPORT ciphers now off by default. For SLES (and also Leap 42.1) we are taking this step, but you can override this for very old legacy software using environment variables. Set the environment variables: OPENSSL_ALLOW_SSL2 for allowing sslv2 again OPENSSL_ALLOW_EXPORT for allowing EXPORT ciphers again Online updates for SUSE Linux Enterprise are currently being released and a TID for SUSE Linux Enterprise will be published at https://www.suse.com/support/kb/doc.php?id=7017297 openSUSE 13.2 and openSUSE Tumbleweed already ship built with "no-ssl2" configure option, so do not feature SSLv2 anymore at all. openSUSE Leap 42.1 will get an update imported from SLES 12 SP1 today. There is a secondary issue called "CacheBleed", which however requires attackers to operate on the same CPU in the same HyperThread making this attack less likely. ( http://ssrg.nicta.com.au/projects/TS/cachebleed// ) Other security issues with lesser impact are also fixed in this update round, but not specifically mentioned in this email. Ciao, Marcus

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