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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1477
              SUSE-SU-2019:1121-1 Security update for gnutls
                                1 May 2019

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

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

Product:           gnutls
Publisher:         SUSE
Operating System:  SUSE
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Privileged Data -- Existing Account      
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-3836 CVE-2019-3829 CVE-2018-16868

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2019/suse-su-20191121-1.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than SUSE. It is recommended that administrators 
         running gnutls check for an updated version of the software for 
         their operating system.

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SUSE Security Update: Security update for gnutls

______________________________________________________________________________

Announcement ID:   SUSE-SU-2019:1121-1
Rating:            important
References:        #1118087 #1130681 #1130682
Cross-References:  CVE-2018-16868 CVE-2019-3829 CVE-2019-3836
Affected Products:
                   SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
                   SUSE Linux Enterprise Module for Desktop Applications 15
                   SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for gnutls fixes to version 3.6.7 the following issues:
Security issued fixed:

  o CVE-2019-3836: Fixed an invalid pointer access via malformed TLS1.3 async
    messages (bsc#1130682).
  o CVE-2019-3829: Fixed a double free vulnerability in the certificate
    verification API (bsc#1130681).
  o CVE-2018-16868: Fixed Bleichenbacher-like side channel leakage in PKCS#1
    v1.5 verification and padding oracle verification (bsc#1118087)


Non-security issue fixed:

  o Update gnutls to support TLS 1.3 (fate#327114)

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:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-1121=1
  o SUSE Linux Enterprise Module for Desktop Applications 15:
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2019-1121=1
  o SUSE Linux Enterprise Module for Basesystem 15:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2019-1121=1

Package List:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
    (aarch64 ppc64le s390x x86_64):
       gnutls-debuginfo-3.6.7-6.8.1
       gnutls-debugsource-3.6.7-6.8.1
       gnutls-guile-3.6.7-6.8.1
       gnutls-guile-debuginfo-3.6.7-6.8.1
  o SUSE Linux Enterprise Module for Desktop Applications 15 (x86_64):
       gnutls-debugsource-3.6.7-6.8.1
       libgnutls30-32bit-3.6.7-6.8.1
       libgnutls30-32bit-debuginfo-3.6.7-6.8.1
  o SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x
    x86_64):
       gnutls-3.6.7-6.8.1
       gnutls-debuginfo-3.6.7-6.8.1
       gnutls-debugsource-3.6.7-6.8.1
       libgnutls-devel-3.6.7-6.8.1
       libgnutls30-3.6.7-6.8.1
       libgnutls30-debuginfo-3.6.7-6.8.1
       libgnutlsxx-devel-3.6.7-6.8.1
       libgnutlsxx28-3.6.7-6.8.1
       libgnutlsxx28-debuginfo-3.6.7-6.8.1
  o SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
       libgnutls30-32bit-3.6.7-6.8.1
       libgnutls30-32bit-debuginfo-3.6.7-6.8.1


References:

  o https://www.suse.com/security/cve/CVE-2018-16868.html
  o https://www.suse.com/security/cve/CVE-2019-3829.html
  o https://www.suse.com/security/cve/CVE-2019-3836.html
  o https://bugzilla.suse.com/1118087
  o https://bugzilla.suse.com/1130681
  o https://bugzilla.suse.com/1130682

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