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
8.6 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
49.3%
Debian LTS Advisory DLA-3310-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
February 07, 2023 https://wiki.debian.org/LTS
Package : xorg-server
Version : 2:1.20.4-1+deb10u8
CVE ID : CVE-2023-0494
Jan-Niklas Sohn, working with Trend Micro Zero Day Initiative, discovered
a vulnerability in the X.Org X server.
A potential use after free mighty result in local privilege escalation if
the X server is running privileged or remote code execution during ssh X
forwarding sessions.
For Debian 10 buster, this problem has been fixed in version
2:1.20.4-1+deb10u8.
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
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | all | xserver-xorg-legacy | < 2:1.20.4-1+deb10u8 | xserver-xorg-legacy_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xvfb | < 2:1.20.4-1+deb10u8 | xvfb_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xserver-common | < 2:1.20.4-1+deb10u8 | xserver-common_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xdmx | < 2:1.20.4-1+deb10u8 | xdmx_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xorg-server-source | < 2:1.20.4-1+deb10u8 | xorg-server-source_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xserver-xorg-dev | < 2:1.20.4-1+deb10u8 | xserver-xorg-dev_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xwayland | < 2:1.20.4-1+deb10u8 | xwayland_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xserver-xorg-core | < 2:1.20.4-1+deb10u8 | xserver-xorg-core_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xserver-xephyr | < 2:1.20.4-1+deb10u8 | xserver-xephyr_2:1.20.4-1+deb10u8_all.deb |
Debian | 10 | all | xorg-server | < 2:1.20.4-1+deb10u8 | xorg-server_2:1.20.4-1+deb10u8_all.deb |
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
8.6 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
49.3%