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debianDebianDEBIAN:DSA-5342-1:4ED5B
HistoryFeb 07, 2023 - 3:48 p.m.

[SECURITY] [DSA 5342-1] xorg-server security update

2023-02-0715:48:26
lists.debian.org
19
xorg-server
user-after-free
security
privilege escalation
debian
cve-2023-0494

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

0.002 Low

EPSS

Percentile

51.8%


Debian Security Advisory DSA-5342-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
February 07, 2023 https://www.debian.org/security/faq


Package : xorg-server
CVE ID : CVE-2023-0494
Debian Bug : 1030777

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

For the stable distribution (bullseye), this problem has been fixed in
version 2:1.20.11-1+deb11u5.

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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

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

0.002 Low

EPSS

Percentile

51.8%