Linux Security
Linux Security
Linux Security

Mageia 2021-0190: x11-server security update

Date 15 Apr 2021
167
Posted By LinuxSecurity Advisories
Insufficient checks on the lengths of the XInput extension ChangeFeedbackControl request can lead to out of bounds memory accesses in the X server. These issues can lead to privilege escalation for authorized clients
MGASA-2021-0190 - Updated x11-server packages fix security vulnerability

Publication date: 15 Apr 2021
URL: https://advisories.mageia.org/MGASA-2021-0190.html
Type: security
Affected Mageia releases: 7, 8
CVE: CVE-2021-3472

Insufficient checks on the lengths of the XInput extension
ChangeFeedbackControl request can lead to out of bounds memory
accesses in the X server.

These issues can lead to privilege escalation for authorized clients
on systems where the X server is running privileged (CVE-2021-3472).

References:
- https://bugs.mageia.org/show_bug.cgi?id=28774
- https://lists.freedesktop.org/archives/xorg/2021-April/060678.html
- https://lists.freedesktop.org/archives/xorg/2021-April/060679.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3472

SRPMS:
- 7/core/x11-server-1.20.11-1.mga7
- 8/core/x11-server-1.20.11-1.mga8

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