Fluid Attacks Database

Description

A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in 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 within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 11	xorg-server	=2:1.20.11-1 \|\| =2:1.20.11-1+deb11u1 \|\| =2:1.20.11-1+deb11u2 \|\| =2:1.20.11-1+deb11u3 \|\| =2:1.20.11-1+deb11u4 \|\| =2:1.20.11-1+deb11u5 \|\| =2:1.20.11-1+deb11u6 \|\| =2:1.20.11-1+deb11u7 \|\| >=0 <2:1.20.11-1+deb11u8	2:1.20.11-1+deb11u8
debian 12	xorg-server	=2:21.1.7-3 \|\| =2:21.1.7-3+deb12u1 \|\| >=0 <2:21.1.7-3+deb12u2	2:21.1.7-3+deb12u2
debian 13	xorg-server	>=0 <2:21.1.9-1	2:21.1.9-1
debian 14	xorg-server	>=0 <2:21.1.9-1	2:21.1.9-1
rpm rhel9	tigervnc	<0:1.13.1-8.el9	0:1.13.1-8.el9
rpm rhel7	tigervnc	<0:1.8.0-26.el7_9	0:1.8.0-26.el7_9
rpm rhel6	tigervnc	-	-
rpm rhel8	tigervnc	<0:1.13.1-8.el8	0:1.13.1-8.el8
rpm rhel6	xorg-x11-server	-	-
rpm rhel7	xorg-x11-server	-	-

1-10 of 12

Aliases

1. CVE-2023-53802. NVD-2023-53803. OSV-DEBIAN-2023-53804. OSV-2023-53805. SECURITY-TRACKER-CVE-2023-5380

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