Vulmon
Amazon Linux 2 Security Advisory: ALAS-2023-2352
Advisory Release Date: 2023-11-29 22:19 Pacific
Advisory Updated Date: 2023-12-04 21:44 Pacific
Severity:
Important
Issue Overview:
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. (CVE-2023-5574)
Affected Packages:
xorg-x11-server
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update xorg-x11-server to update your system.
New Packages:
aarch64:
xorg-x11-server-common-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xorg-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xnest-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xdmx-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xvfb-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xephyr-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-Xwayland-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-devel-1.20.4-22.amzn2.0.2.aarch64
xorg-x11-server-debuginfo-1.20.4-22.amzn2.0.2.aarch64
i686:
xorg-x11-server-common-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xorg-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xnest-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xdmx-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xvfb-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xephyr-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-Xwayland-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-devel-1.20.4-22.amzn2.0.2.i686
xorg-x11-server-debuginfo-1.20.4-22.amzn2.0.2.i686
noarch:
xorg-x11-server-source-1.20.4-22.amzn2.0.2.noarch
src:
xorg-x11-server-1.20.4-22.amzn2.0.2.src
x86_64:
xorg-x11-server-common-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xorg-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xnest-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xdmx-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xvfb-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xephyr-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-Xwayland-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-devel-1.20.4-22.amzn2.0.2.x86_64
xorg-x11-server-debuginfo-1.20.4-22.amzn2.0.2.x86_64