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openSUSE 15.4 xorg-x11-server Important Security Update 2026-2223-1

suse
Calendar Grey June 2, 2026
Dist Suse Esm H88
Critical security update for xorg-x11-server fixing multiple important vulnerabilities including information disclosure and buffer overflows.
# Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2223-1 Release Date: 2026-06-02T08:41:31Z Rating: important References:

Summary

## This update for xorg-x11-server fixes the following issues * CreateSaverWindow Use-After-Free Information Disclosure. (bsc#1266301) * DRI2 DRIGetBuffers/DRIGetBuffersWithFormat Out-Of-Bounds Write. (bsc#1266302) * Font Alias Stack-based Buffer Overflow. (bsc#1266294) * GLX ChangeDrawableAttributes Out-Of-Bounds Read/Write. (bsc#1266300) * XKB Key Types Stack-based Buffer Overflow. (bsc#1266296) * XKB SetMap Request Stack-based Buffer Overflow. (bsc#1266297) * XSYNC Use-After-Free in FreeCounter(). (bsc#1266298) * XSYNC Use-After-Free in miSyncDestroyFence(). (bsc#1266295) * XSYNC Use-After-Free in SyncChangeCounter(). (bsc#1266299) ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory security issue important information disclosure Xorg X11 Server OpenSUSE

References

* bsc#1266294

* bsc#1266295

* bsc#1266296

* bsc#1266297

* bsc#1266298

* bsc#1266299

* bsc#1266300

* bsc#1266301

* bsc#1266302

Affected Products:

* openSUSE Leap 15.4

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server 15 SP4 LTSS

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that has nine security fixes can now be installed.

##

* https://bugzilla.suse.com/show_bug.cgi?id=1266294

* https://bugzilla.suse.com/show_bug.cgi?id=1266295

* https://bugzilla.suse.com/show_bug.cgi?id=1266296

* https://bugzilla.suse.com/show_bug.cgi?id=1266297

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2223-1
Release Date: 2026-06-02T08:41:31Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue important information disclosure Xorg X11 Server OpenSUSE

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