SUSE SLED15 / SLES15 Security Update : xwayland (SUSE-SU-2026:2426-1)

high Nessus Plugin ID 321592

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:2426-1 advisory.

- 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)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected xwayland package.

See Also

https://bugzilla.suse.com/1266294

https://bugzilla.suse.com/1266295

https://bugzilla.suse.com/1266296

https://bugzilla.suse.com/1266297

https://bugzilla.suse.com/1266298

https://bugzilla.suse.com/1266299

https://bugzilla.suse.com/1266300

https://bugzilla.suse.com/1266301

https://lists.suse.com/pipermail/sle-updates/2026-June/047404.html

Plugin Details

Severity: High

ID: 321592

File Name: suse_SU-2026-2426-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/20/2026

Updated: 6/20/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:xwayland, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2026

Vulnerability Publication Date: 6/17/2026

Reference Information

SuSE: SUSE-SU-2026:2426-1