CVE-2023-0494
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-0494
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-0494.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-0494
- Related
- Published
- 2023-03-27T21:15:10Z
- Modified
- 2025-04-29T08:03:55.046166Z
- Downstream
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html
- https://security.gentoo.org/glsa/202305-30
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995
- https://security-tracker.debian.org/tracker/CVE-2023-0494
Affected packages
Debian:11 / xorg-server
Package
- Name
- xorg-server
- Purl
- pkg:deb/debian/xorg-server?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2:1.20.11-1+deb11u5
Debian:12 / xorg-server
Package
- Name
- xorg-server
- Purl
- pkg:deb/debian/xorg-server?arch=source
Debian:13 / xorg-server
Package
- Name
- xorg-server
- Purl
- pkg:deb/debian/xorg-server?arch=source
Debian:12 / xwayland
Package
- Name
- xwayland
- Purl
- pkg:deb/debian/xwayland?arch=source
Debian:13 / xwayland
Package
- Name
- xwayland
- Purl
- pkg:deb/debian/xwayland?arch=source