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Name
CVE-2026-34000
Description
A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://access.redhat.com/security/cve/CVE-2026-34000Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2451107Issue Tracking
Analysis#
Vulnerability Ratings#
6.1
CVSSv31
9.1
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
xserver-xorg (yocto:scarthgap)
#
Title
Author
Resolve
1
xkb: Fix bounds check in _CheckSetGeom()
Olivier Fourdan <ofourdan@redhat.com>
CVE-2026-34000
xwayland (yocto:scarthgap)
#
Title
Author
Resolve
1
xkb: Fix bounds check in _CheckSetGeom()
Olivier Fourdan <ofourdan@redhat.com>
CVE-2026-34000