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CVE-2026-34000

9.1 Critique

Publiée le 05/05/2026 à 18:16 · Modifiée le 17/06/2026 à 12:38 · Modifiée · Source : secalert@redhat.com

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.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 6.1 Moyenne secalert@redhat.com CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
3.1 9.1 Critique nvd@nist.gov (NVD) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Faiblesses (CWE)

Références

Ailleurs