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

Mageia 2021-0190: x11-server security update

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

Summary

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

Resolution

MGASA-2021-0190 - Updated x11-server packages fix security vulnerability

SRPMS

- 7/core/x11-server-1.20.11-1.mga7

- 8/core/x11-server-1.20.11-1.mga8

Severity
Publication date: 15 Apr 2021
URL: https://advisories.mageia.org/MGASA-2021-0190.html
Type: security
CVE: CVE-2021-3472

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