Security update for gdm

SUSE Security Update: Security update for gdm
Announcement ID: SUSE-SU-2018:2771-1
Rating: moderate
References: #1081947 #1103093 #1103737
Cross-References: CVE-2018-14424
Affected Products:
  • SUSE Linux Enterprise Module for Desktop Applications 15

An update that solves one vulnerability and has two fixes is now available.

Description:

This update for gdm provides the following fixes:
This security issue was fixed:

  • CVE-2018-14424: The daemon in GDM did not properly unexport display objects from its D-Bus interface when they are destroyed, which allowed a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution (bsc#1103737)

These non-security issues were fixed:
  • Enable pam_keyinit module (bsc#1081947)
  • Fix a build race in SLE (bsc#1103093)

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-15-2018-1939=1

Package List:

  • SUSE Linux Enterprise Module for Desktop Applications 15 (aarch64 ppc64le s390x x86_64):
    • gdm-3.26.2.1-13.9.1
    • gdm-debuginfo-3.26.2.1-13.9.1
    • gdm-debugsource-3.26.2.1-13.9.1
    • gdm-devel-3.26.2.1-13.9.1
    • libgdm1-3.26.2.1-13.9.1
    • libgdm1-debuginfo-3.26.2.1-13.9.1
    • typelib-1_0-Gdm-1_0-3.26.2.1-13.9.1
  • SUSE Linux Enterprise Module for Desktop Applications 15 (noarch):
    • gdm-lang-3.26.2.1-13.9.1
    • gdmflexiserver-3.26.2.1-13.9.1

References: