openSUSE Security Update: Security update for xorg-x11-server ______________________________________________________________________________ Announcement ID: openSUSE-SU-2021:4136-1 Rating: important References: #1190487 #1190488 #1190489 Cross-References: CVE-2021-4009 CVE-2021-4010 CVE-2021-4011 CVSS scores: CVE-2021-4009 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-4010 (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 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected Products: openSUSE Leap 15.3 ______________________________________________________________________________ An update that fixes three vulnerabilities is now available. Description: This update for xorg-x11-server fixes the following issues: - CVE-2021-4009: The handler for the CreatePointerBarrier request of the XFixes extension does not properly validate the request length leading to out of bounds memory write. (bsc#1190487) - CVE-2021-4010: The handler for the Suspend request of the Screen Saver extension does not properly validate the request length leading to out of bounds memory write. (bsc#1190488) - 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 openSUSE 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: - openSUSE Leap 15.3: zypper in -t patch openSUSE-SLE-15.3-2021-4136=1 Package List: - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64): xorg-x11-server-1.20.3-22.5.42.1 xorg-x11-server-debuginfo-1.20.3-22.5.42.1 xorg-x11-server-debugsource-1.20.3-22.5.42.1 xorg-x11-server-extra-1.20.3-22.5.42.1 xorg-x11-server-extra-debuginfo-1.20.3-22.5.42.1 xorg-x11-server-sdk-1.20.3-22.5.42.1 xorg-x11-server-source-1.20.3-22.5.42.1 xorg-x11-server-wayland-1.20.3-22.5.42.1 xorg-x11-server-wayland-debuginfo-1.20.3-22.5.42.1 References: https://www.suse.com/security/cve/CVE-2021-4009.html https://www.suse.com/security/cve/CVE-2021-4010.html https://www.suse.com/security/cve/CVE-2021-4011.html https://bugzilla.suse.com/1190487 https://bugzilla.suse.com/1190488 https://bugzilla.suse.com/1190489