CVE-2022-4283
- State
- Published
- Severity
- 7.8 High
- Published
- Dec 14, 2022
- Updated
- Apr 14, 2025
- Reserved
- Dec 5, 2022
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
xorg-x11-servern/a |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2151761
- https://access.redhat.com/security/cve/CVE-2022-4283
- FEDORA-2022-c3a65f7c65vendor-advisory
- FEDORA-2022-721a78b7e5vendor-advisory
- DSA-5304vendor-advisory
- FEDORA-2022-dd3eb7e0a8vendor-advisory
- https://security.gentoo.org/glsa/202305-30
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