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.
                
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References
        History
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 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: redhat
Published: 2023-10-25T19:47:03.122Z
Updated: 2025-07-30T12:41:23.179Z
Reserved: 2023-10-13T11:35:44.857Z
Link: CVE-2023-5574
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2023-10-25T20:15:18.717
Modified: 2024-11-21T08:42:02.790
Link: CVE-2023-5574
 Redhat
                        Redhat