CVEvulnerability
CVE-2023-0494
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-03-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
Affected configurations
• x.org x server (< 21.1.7)
• fedoraproject fedora 36
• fedoraproject fedora 37
• redhat enterprise linux 8.0
• redhat enterprise linux 8.1
• redhat enterprise linux 9.0
• redhat enterprise linux aus 8.4
• redhat enterprise linux aus 8.6
• redhat enterprise linux desktop 7.0
• redhat enterprise linux eus 8.4
• redhat enterprise linux eus 8.6
• redhat enterprise linux eus 9.0
• redhat enterprise linux for ibm z systems 7.0
• redhat enterprise linux for ibm z systems 8.0
• redhat enterprise linux for ibm z systems eus 8.4
• redhat enterprise linux for ibm z systems eus 8.6
• redhat enterprise linux for power big endian 7.0
• redhat enterprise linux for power little endian 7.0
• redhat enterprise linux for power little endian 8.0
• redhat enterprise linux for power little endian 9.0
• redhat enterprise linux for power little endian eus 8.4
• redhat enterprise linux for power little endian eus 8.6
• redhat enterprise linux for scientific computing 7.0
• redhat enterprise linux server 7.0
• redhat enterprise linux server aus 8.2
• redhat enterprise linux server for power little endian update services for sap solutions 8.1
• redhat enterprise linux server for power little endian update services for sap solutions 8.2
• redhat enterprise linux server for power little endian update services for sap solutions 8.4
• redhat enterprise linux server for power little endian update services for sap solutions 8.6
• redhat enterprise linux server for power little endian update services for sap solutions 9.0
• redhat enterprise linux server tus 8.2
• redhat enterprise linux server tus 8.4
• redhat enterprise linux server tus 8.6
• redhat enterprise linux server update services for sap solutions 8.2
• redhat enterprise linux server workstation 7.0
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995 Issue Tracking, Third Party Advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec Patch
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html Mailing List, Vendor Advisory
- https://security.gentoo.org/glsa/202305-30 security.gentoo.org
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995 Issue Tracking, Third Party Advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec Patch
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html Mailing List, Vendor Advisory
- https://security.gentoo.org/glsa/202305-30 security.gentoo.org