CVE-2023-5574

CWE-416 — Use After Free9 documents8 sources
Severity
7.0HIGH
EPSS
0.0%
top 89.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Redhat Enterprise LinuxX.org X Server
Timeline
PublishedOct 25

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.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages1 packages

Also affects: Enterprise Linux 7.0

Patches

Patch: lists.x.org ↗Patch: lists.x.org ↗

🔴Vulnerability Details

3
OSV
CVE-2023-5574: A use-after-free flaw was found in xorg-x11-server-Xvfb↗2023-10-25
▶
GHSA
GHSA-79x6-r5x5-fvqw: A use-after-free flaw was found in xorg-x11-server-Xvfb↗2023-10-25
▶
CVEList
Xorg-x11-server: use-after-free bug in damagedestroy↗2023-10-25
▶

📋Vendor Advisories

5
BSD
OpenBSD 7.3 Errata 018: SECURITY FIX↗2023-10-25
▶
BSD
OpenBSD 7.4 Errata 001: SECURITY FIX↗2023-10-25
▶
Red Hat
xorg-x11-server: Use-after-free bug in DamageDestroy↗2023-10-25
▶
Microsoft
Xorg-x11-server: use-after-free bug in damagedestroy↗2023-10-10
▶
Debian
CVE-2023-5574: xorg-server - A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xv...↗2023
▶