ESB-2018.2876 - [SUSE] gnutls: Multiple vulnerabilities 2018-09-25

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2876
             SUSE Security Update: Security update for gnutls
                             25 September 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           gnutls
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-10846 CVE-2018-10845 CVE-2018-10844
                   CVE-2017-10790  

Reference:         ESB-2018.2868

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20182842-1/

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   SUSE Security Update: Security update for gnutls
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2842-1
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 Software Development Kit 12-SP3
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
______________________________________________________________________________

   An update that fixes four vulnerabilities is now available.

Description:

   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 Software Development Kit 12-SP3:

      zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-1990

   - SUSE Linux Enterprise Server 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-1990

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-1990



Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 ppc64le s390x x86_64):

      gnutls-debuginfo-3.3.27-3.3.1
      gnutls-debugsource-3.3.27-3.3.1
      libgnutls-devel-3.3.27-3.3.1
      libgnutls-openssl-devel-3.3.27-3.3.1
      libgnutlsxx-devel-3.3.27-3.3.1
      libgnutlsxx28-3.3.27-3.3.1
      libgnutlsxx28-debuginfo-3.3.27-3.3.1

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

      gnutls-3.3.27-3.3.1
      gnutls-debuginfo-3.3.27-3.3.1
      gnutls-debugsource-3.3.27-3.3.1
      libgnutls-openssl27-3.3.27-3.3.1
      libgnutls-openssl27-debuginfo-3.3.27-3.3.1
      libgnutls28-3.3.27-3.3.1
      libgnutls28-debuginfo-3.3.27-3.3.1

   - SUSE Linux Enterprise Server 12-SP3 (s390x x86_64):

      libgnutls28-32bit-3.3.27-3.3.1
      libgnutls28-debuginfo-32bit-3.3.27-3.3.1

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      gnutls-3.3.27-3.3.1
      gnutls-debuginfo-3.3.27-3.3.1
      gnutls-debugsource-3.3.27-3.3.1
      libgnutls28-3.3.27-3.3.1
      libgnutls28-32bit-3.3.27-3.3.1
      libgnutls28-debuginfo-3.3.27-3.3.1
      libgnutls28-debuginfo-32bit-3.3.27-3.3.1


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

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