openSUSE 2026 xorg-x11-server Important DoS Issues SUSE-SU-2026-1331

This update for xorg-x11-server fixes the following issues: * CVE-2026-33999: XKB integer underflow in XkbSetCompatMap() (bsc#1260922). * CVE-2026-34000: XKB out-of-bounds read in CheckSetGeom() (bsc#1260923). * CVE-2026-34001: XSYNC use-after-free in miSyncTriggerFence() (bsc#1260924). * CVE-2026-34002: XKB out-of-bounds read in CheckModifierMap() (bsc#1260925). * CVE-2026-34003: XKB buffer overflow in CheckKeyTypes() (bsc#1260926).

## 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: * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-1331=1 openSUSE-SLE-15.6-2026-1331=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1331=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1331=1

## 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:

zypper in -t patch SUSE-2026-1331=1 openSUSE-SLE-15.6-2026-1331=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1331=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1331=1

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586) * xorg-x11-server-sdk-21.1.11-150600.5.25.1 * xorg-x11-server-source-21.1.11-150600.5.25.1 * xorg-x11-server-21.1.11-150600.5.25.1 * xorg-x11-server-debugsource-21.1.11-150600.5.25.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.25.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.25.1 * xorg-x11-server-extra-21.1.11-150600.5.25.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.25.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.25.1 * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.25.1 * xorg-x11-server-21.1.11-150600.5.25.1 * xorg-x11-server-debugsource-21.1.11-150600.5.25.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.25.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.25.1 * xorg-x11-server-extra-21.1.11-150600.5.25.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.25.1 * Read the Full Advisory

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* xorg-x11-server-sdk-21.1.11-150600.5.25.1

* xorg-x11-server-source-21.1.11-150600.5.25.1

* xorg-x11-server-21.1.11-150600.5.25.1

* xorg-x11-server-debugsource-21.1.11-150600.5.25.1

* xorg-x11-server-Xvfb-21.1.11-150600.5.25.1

* xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.25.1

* xorg-x11-server-extra-21.1.11-150600.5.25.1

* xorg-x11-server-extra-debuginfo-21.1.11-150600.5.25.1

* xorg-x11-server-debuginfo-21.1.11-150600.5.25.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)

* xorg-x11-server-sdk-21.1.11-150600.5.25.1

* xorg-x11-server-21.1.11-150600.5.25.1

* xorg-x11-server-debugsource-21.1.11-150600.5.25.1

* xorg-x11-server-Xvfb-21.1.11-150600.5.25.1

* xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.25.1

* xorg-x11-server-extra-21.1.11-150600.5.25.1

* xorg-x11-server-extra-debuginfo-21.1.11-150600.5.25.1

* bsc#1260922 * bsc#1260923 * bsc#1260924 * bsc#1260925 * bsc#1260926 ## References: * * * * * * * * * *

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