CVE-2022-3550

xorg-x11-server: buffer overflow in _GetCountedString() in xkb/xkb.c

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Severity

Important

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · October 17, 2022

Updated · June 27, 2026

Description

A flaw was found in the xorg-x11-server package. A buffer overflow can occur in the _GetCountedString function in xkb/xkb.c due to improper input validation, allowing for possible escalation of privileges, execution of arbitrary code, or a denial of service.

Statement

Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore Red Hat Enterprise Linux 8 and 9 have been rated with a moderate severity.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')