CVE-2023-0494
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | xorg-x11-server | xorg-server 21.1.7 | affected |
Weaknesses
- CWE-416: CWE-416
ADP Enrichment
CVE Program Container
Additional References
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
- https://security.gentoo.org/glsa/202305-30
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
- https://security.gentoo.org/glsa/202305-30
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