CVE-2023-1393
- State
- Published
- Severity
- 7.8 High
- Published
- Mar 30, 2023
- Updated
- Jan 22, 2026
- Reserved
- Mar 14, 2023
Description
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
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
Affected Products
| Product | Versions |
|---|---|
xorg-servern/a |
|
References
- https://www.openwall.com/lists/oss-security/2023/03/29/1
- FEDORA-2023-eb3c27ff25vendor-advisory
- FEDORA-2023-b7835960acvendor-advisory
- FEDORA-2023-b87fd3a628vendor-advisory
- FEDORA-2023-f754e7abfdvendor-advisory
- FEDORA-2023-66d5af0278vendor-advisory
- FEDORA-2023-239bae4b57vendor-advisory
- FEDORA-2023-fe18ae3e85vendor-advisory
- FEDORA-2023-6f3f9ee721vendor-advisory
- GLSA-202305-30vendor-advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/26ef545b3502f61ca722a7a3373507e88ef64110
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