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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
0:1.13.1-8.el9 to < *unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unknown
Red Hat Red Hat Enterprise Linux 7
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 7
Default version status: affected
Red Hat Red Hat Enterprise Linux 8
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
Red Hat Red Hat Enterprise Linux 8
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
Red Hat Red Hat Enterprise Linux 9
Default version status: unaffected