ESB-2018.2942 - [SUSE] gnutls: Multiple vulnerabilities 2018-10-01

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2942
             SUSE Security Update: Security update for gnutls
                              1 October 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-2018.2876
                   ESB-2018.2868

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20182930-1/

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   SUSE Security Update: Security update for gnutls
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2930-1
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 Module for Desktop Applications 15
                    SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________

   An update that fixes four vulnerabilities is now available.

Description:

   This update for gnutls fixes the following security issues:

   - Improved mitigations against Lucky 13 class of attacks
   - CVE-2018-10846: "Just in Time" PRIME + PROBE cache-based side channel
     attack can lead to plaintext recovery (bsc#1105460)
   - CVE-2018-10845: HMAC-SHA-384 vulnerable to Lucky thirteen attack due to
     use
     of wrong constant (bsc#1105459)
   - CVE-2018-10844: HMAC-SHA-256 vulnerable to Lucky thirteen attack due to
     not enough dummy function calls (bsc#1105437)
   - CVE-2017-10790: The _asn1_check_identifier function in Libtasn1 caused a
     NULL pointer dereference and crash (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 Module for Desktop Applications 15:

      zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2018-2070=1

   - SUSE Linux Enterprise Module for Basesystem 15:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2070=1



Package List:

   - SUSE Linux Enterprise Module for Desktop Applications 15 (x86_64):

      gnutls-debugsource-3.6.2-6.3.1
      libgnutls30-32bit-3.6.2-6.3.1
      libgnutls30-32bit-debuginfo-3.6.2-6.3.1

   - SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):

      gnutls-3.6.2-6.3.1
      gnutls-debuginfo-3.6.2-6.3.1
      gnutls-debugsource-3.6.2-6.3.1
      libgnutls-devel-3.6.2-6.3.1
      libgnutls30-3.6.2-6.3.1
      libgnutls30-debuginfo-3.6.2-6.3.1
      libgnutlsxx-devel-3.6.2-6.3.1
      libgnutlsxx28-3.6.2-6.3.1
      libgnutlsxx28-debuginfo-3.6.2-6.3.1


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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