🛡️ CVE-2022-4283
🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-416 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-416
Public Exploit ✅ No
Source NVD
Published 2022-12-14
Updated 2026-06-08
Modified 2025-08-29
Fix URL N/A

Affected Packages

Software From version Fixed in
debian-linux
enterprise-linux
fedora
x-server

References

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2151761
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2151761

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