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.
Affected products
x.org: x server; redhat: enterprise linux
References9
- lists.x.org/archives/xorg-announce/2023-October/003430.html PatchVendor Advisory
- lists.x.org/archives/xorg-announce/2023-October/003430.html PatchVendor Advisory
- access.redhat.com/errata/RHSA-2024:2298
- access.redhat.com/security/cve/CVE-2023-5574 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2244735 Issue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2024:2298
- access.redhat.com/security/cve/CVE-2023-5574 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2244735 Issue TrackingThird Party Advisory
- security.netapp.com/advisory/ntap-20231130-0004/
Metrics
- CVSS 3.1
-
7.0
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 49 · as of 5 November 2026
- CWE
- CWE-416
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