Security update for gdm

Announcement ID: SUSE-SU-2018:2771-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2018-14424 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-14424 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • Desktop Applications Module 15
  • SUSE Linux Enterprise Desktop 15
  • SUSE Linux Enterprise High Performance Computing 15
  • SUSE Linux Enterprise Server 15
  • SUSE Linux Enterprise Server for SAP Applications 15

An update that solves one vulnerability and has two security fixes can now be installed.

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 update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • Desktop Applications Module 15
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2018-1939=1

Package List:

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

References: