SUSE-SU-2018:2825-2: moderate: Security update for gnutls

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for gnutls
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Announcement ID:    SUSE-SU-2018:2825-2
Rating:             moderate
References:         #1047002 #1105437 #1105459 #1105460 
Cross-References:   CVE-2017-10790 CVE-2018-10844 CVE-2018-10845
                    CVE-2018-10846
Affected Products:
                    SUSE Linux Enterprise Server 12-SP2-BCL
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   An update that fixes four vulnerabilities is now available.

Description:

   This update for gnutls fixes the following issues:

   This update for gnutls fixes the following issues:

   Security issues fixed:

   - Improved mitigations against Lucky 13 class of attacks
   - "Just in Time" PRIME + PROBE cache-based side channel attack can lead to
     plaintext recovery (CVE-2018-10846, bsc#1105460)
   - HMAC-SHA-384 vulnerable to Lucky thirteen attack due to use of wrong
     constant (CVE-2018-10845, bsc#1105459)
   - HMAC-SHA-256 vulnerable to Lucky thirteen attack due to not enough dummy
     function calls (CVE-2018-10844, bsc#1105437)
   - The _asn1_check_identifier function in Libtasn1 caused a NULL pointer
     dereference and crash (CVE-2017-10790, bsc#1047002)


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 12-SP2-BCL:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-1977=1



Package List:

   - SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):

      gnutls-3.2.15-18.6.1
      gnutls-debuginfo-3.2.15-18.6.1
      gnutls-debugsource-3.2.15-18.6.1
      libgnutls-openssl27-3.2.15-18.6.1
      libgnutls-openssl27-debuginfo-3.2.15-18.6.1
      libgnutls28-3.2.15-18.6.1
      libgnutls28-32bit-3.2.15-18.6.1
      libgnutls28-debuginfo-3.2.15-18.6.1
      libgnutls28-debuginfo-32bit-3.2.15-18.6.1


References:

   https://www.suse.com/security/cve/CVE-2017-10790.html
   https://www.suse.com/security/cve/CVE-2018-10844.html
   https://www.suse.com/security/cve/CVE-2018-10845.html
   https://www.suse.com/security/cve/CVE-2018-10846.html
   https://bugzilla.suse.com/1047002
   https://bugzilla.suse.com/1105437
   https://bugzilla.suse.com/1105459
   https://bugzilla.suse.com/1105460