Mageia alert MGASA-2026-0155 (tigervnc, x11-server, x11-server-xwayland)

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Mageia Updates <updates-announce@ml.mageia.org>
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updates-announce@ml.mageia.org
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[updates-announce] MGASA-2026-0155: Updated x11-server, x11-server-xwayland & tigervnc packages fix security vulnerabilities
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Tue, 26 May 2026 03:56:12 +0200
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<20260526015612.C6E4D9FB10@duvel.mageia.org>
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Article
MGASA-2026-0155 - Updated x11-server, x11-server-xwayland & tigervnc packages fix security
vulnerabilities

Publication date: 26 May 2026
URL: https://advisories.mageia.org/MGASA-2026-0155.html
Type: security
Affected Mageia releases: 9
CVE: CVE-2026-33999,
     CVE-2026-34000,
     CVE-2026-34001,
     CVE-2026-34002,
     CVE-2026-34003

Description:
XKB Integer Underflow in XkbSetCompatMap(). (CVE-2026-33999)
XKB Out-of-bounds Read in CheckSetGeom(). (CVE-2026-34000)
XSYNC Use-after-free in miSyncTriggerFence(). (CVE-2026-34001)
XKB Out-of-bounds read in CheckModifierMap(). (CVE-2026-34002)
XKB Buffer overflow in CheckKeyTypes(). (CVE-2026-34003)

References:
- https://bugs.mageia.org/show_bug.cgi?id=35366
- https://www.openwall.com/lists/oss-security/2026/04/14/8
-
https://lists.fedoraproject.org/archives/list/package-ann...
-
https://lists.fedoraproject.org/archives/list/package-ann...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3...

SRPMS:
- 9/core/x11-server-21.1.8-7.10.mga9
- 9/core/x11-server-xwayland-22.1.9-1.10.mga9
- 9/core/tigervnc-1.13.1-2.11.mga9