Security update for xorg-x11-server

Announcement ID: SUSE-SU-2021:14867-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-4011 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-4011 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Point of Service 11 SP3
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4

An update that solves one vulnerability can now be installed.

Description:

This update for xorg-x11-server fixes the following issues:

  • CVE-2021-4011: The handlers for the RecordCreateContext and RecordRegisterClients requests of the Record extension do not properly validate the request length leading to out of bounds memory write. (bsc#1190489)

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:

  • SUSE Linux Enterprise Point of Service 11 SP3
    zypper in -t patch sleposp3-xorg-x11-server-14867=1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4
    zypper in -t patch slessp4-xorg-x11-server-14867=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-xorg-x11-server-14867=1

Package List:

  • SUSE Linux Enterprise Point of Service 11 SP3 (i586)
    • xorg-x11-server-extra-7.4-27.122.46.1
    • xorg-x11-Xvnc-7.4-27.122.46.1
    • xorg-x11-server-7.4-27.122.46.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (ppc64 s390x x86_64 i586)
    • xorg-x11-server-extra-7.4-27.122.46.1
    • xorg-x11-Xvnc-7.4-27.122.46.1
    • xorg-x11-server-7.4-27.122.46.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64 i586)
    • xorg-x11-server-extra-7.4-27.122.46.1
    • xorg-x11-Xvnc-7.4-27.122.46.1
    • xorg-x11-server-7.4-27.122.46.1

References: