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Security update for xorg-x11-server: fixes critical bugs
published 5 months ago
Summary
This update fixes several critical bugs in the xorg-x11-server software that could allow hackers to access sensitive information, steal data, or take control of your computer. It's essential to install this update to protect your system and prevent potential security breaches. Apply the update as soon as possible to ensure the security and stability of your system.
Original advisory text
Security update for xorg-x11-server
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)
- 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)
References
- https://www.suse.com/support/update/announcement/2026/suse-su-20262226-1/ Vendor Advisory
- https://bugzilla.suse.com/1266294 Third Party Advisory
- https://bugzilla.suse.com/1266295 Third Party Advisory
- https://bugzilla.suse.com/1266296 Third Party Advisory
- https://bugzilla.suse.com/1266297 Third Party Advisory
- https://bugzilla.suse.com/1266298 Third Party Advisory
- https://bugzilla.suse.com/1266299 Third Party Advisory
- https://bugzilla.suse.com/1266300 Third Party Advisory
- https://bugzilla.suse.com/1266301 Third Party Advisory
- https://bugzilla.suse.com/1266302 Third Party Advisory
Timeline
Published2 Jun 2026
Updated3 Jun 2026
First seen3 Jun 2026
Sources
SUSE-SU-2026:2226-1 · OSV
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