vulnerability
Ubuntu: (CVE-2023-5574): xorg vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:S/C:C/I:C/A:C) | Oct 25, 2023 | Jun 26, 2025 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Oct 25, 2023
Added
Jun 26, 2025
Modified
Mar 27, 2026
Description
A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.
Solution
no-fix-ubuntu-package
Rapid7 Labs
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