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SUSE Xwayland Important Use-After-Free Buffer Overflow Vuln 2026-2426-1

suse
Calendar Grey June 17, 2026
Dist Suse Esm H88
Important security update for xwayland addresses multiple critical issues in SUSE systems. Install patch promptly.
# Security update for xwayland Announcement ID: SUSE-SU-2026:2426-1 Release Date: 2026-06-17T09:50:05Z Rating: important References:

Summary

## This update for xwayland fixes the following issues: * CreateSaverWindow Use-After-Free Information Disclosure. (bsc#1266301) * 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". Alternatively you can run the command listed for your product:

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important information disclosure use-after-free

References

* bsc#1266294

* bsc#1266295

* bsc#1266296

* bsc#1266297

* bsc#1266298

* bsc#1266299

* bsc#1266300

* bsc#1266301

Affected Products:

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

* SUSE Linux Enterprise Workstation Extension 15 SP7

An update that has eight 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

* https://bugzilla.suse.com/show_bug.cgi?id=1266298

* https://bugzilla.suse.com/show_bug.cgi?id=1266299

* https://bugzilla.suse.com/show_bug.cgi?id=1266300

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2426-1
Release Date: 2026-06-17T09:50:05Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important information disclosure use-after-free

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