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.
No analysis available yet.
Remediation
Vendor Workaround
Starting Xvfb with the -noreset command line option limits the use-after-free from being triggered only at the Xvfb server shutdown. Also, do not start Xvfb as root.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2023-57870 | 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. |
References
History
Fri, 22 Nov 2024 12:00:00 +0000
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Mon, 16 Sep 2024 17:45:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-11-20T07:07:51.123Z
Reserved: 2023-10-13T11:35:44.857Z
Link: CVE-2023-5574
No data.
Status : Modified
Published: 2023-10-25T20:15:18.717
Modified: 2024-11-21T08:42:02.790
Link: CVE-2023-5574
OpenCVE Enrichment
No data.
Weaknesses
EUVD