[SECURITY] [DLA 3372-1] xorg-server security update

2023-03-2914:32:35

lists.debian.org

xorg-server

privilege escalation

debian 10

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.9%

JSON

Debian LTS Advisory DLA-3372-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
March 29, 2023 https://wiki.debian.org/LTS

Package : xorg-server
Version : 2:1.20.4-1+deb10u9
CVE ID : CVE-2023-1393

Jan-Niklas Sohn discovered that a use-after-free flaw in the Composite
extension of the X.org X server may result in privilege escalation if
the X server is running under the root user.

For Debian 10 buster, this problem has been fixed in version
2:1.20.4-1+deb10u9.

We recommend that you upgrade your xorg-server packages.

For the detailed security status of xorg-server please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian11armelxdmx-tools-dbgsym< 2:1.20.11-1+deb11u6xdmx-tools-dbgsym_2:1.20.11-1+deb11u6_armel.deb
Debian11i386xserver-xorg-legacy< 2:1.20.11-1+deb11u6xserver-xorg-legacy_2:1.20.11-1+deb11u6_i386.deb
Debian10armhfxserver-xephyr< 2:1.20.4-1+deb10u9xserver-xephyr_2:1.20.4-1+deb10u9_armhf.deb
Debian10arm64xserver-xorg-core< 2:1.20.4-1+deb10u9xserver-xorg-core_2:1.20.4-1+deb10u9_arm64.deb
Debian11arm64xdmx-tools< 2:1.20.11-1+deb11u6xdmx-tools_2:1.20.11-1+deb11u6_arm64.deb
Debian10amd64xserver-xorg-core< 2:1.20.4-1+deb10u9xserver-xorg-core_2:1.20.4-1+deb10u9_amd64.deb
Debian11mips64elxdmx-dbgsym< 2:1.20.11-1+deb11u6xdmx-dbgsym_2:1.20.11-1+deb11u6_mips64el.deb
Debian11ppc64elxvfb< 2:1.20.11-1+deb11u6xvfb_2:1.20.11-1+deb11u6_ppc64el.deb
Debian11amd64xwayland-dbgsym< 2:1.20.11-1+deb11u6xwayland-dbgsym_2:1.20.11-1+deb11u6_amd64.deb
Debian11arm64xserver-xorg-core-dbgsym< 2:1.20.11-1+deb11u6xserver-xorg-core-dbgsym_2:1.20.11-1+deb11u6_arm64.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	armel	xdmx-tools-dbgsym	< 2:1.20.11-1+deb11u6	xdmx-tools-dbgsym_2:1.20.11-1+deb11u6_armel.deb
Debian	11	i386	xserver-xorg-legacy	< 2:1.20.11-1+deb11u6	xserver-xorg-legacy_2:1.20.11-1+deb11u6_i386.deb
Debian	10	armhf	xserver-xephyr	< 2:1.20.4-1+deb10u9	xserver-xephyr_2:1.20.4-1+deb10u9_armhf.deb
Debian	10	arm64	xserver-xorg-core	< 2:1.20.4-1+deb10u9	xserver-xorg-core_2:1.20.4-1+deb10u9_arm64.deb
Debian	11	arm64	xdmx-tools	< 2:1.20.11-1+deb11u6	xdmx-tools_2:1.20.11-1+deb11u6_arm64.deb
Debian	10	amd64	xserver-xorg-core	< 2:1.20.4-1+deb10u9	xserver-xorg-core_2:1.20.4-1+deb10u9_amd64.deb
Debian	11	mips64el	xdmx-dbgsym	< 2:1.20.11-1+deb11u6	xdmx-dbgsym_2:1.20.11-1+deb11u6_mips64el.deb
Debian	11	ppc64el	xvfb	< 2:1.20.11-1+deb11u6	xvfb_2:1.20.11-1+deb11u6_ppc64el.deb
Debian	11	amd64	xwayland-dbgsym	< 2:1.20.11-1+deb11u6	xwayland-dbgsym_2:1.20.11-1+deb11u6_amd64.deb
Debian	11	arm64	xserver-xorg-core-dbgsym	< 2:1.20.11-1+deb11u6	xserver-xorg-core-dbgsym_2:1.20.11-1+deb11u6_arm64.deb