MGASA-2023-0334 - Updated xrdp packages fix security vulnerability

Publication date: 01 Dec 2023
URL: https://advisories.mageia.org/MGASA-2023-0334.html
Type: security
Affected Mageia releases: 9
CVE: CVE-2023-42822

The updated packages fix a security vulnerability

Access to the font glyphs in xrdp_painter.c is not bounds-checked. Since
some of this data is controllable by the user, this can result in an
out-of-bounds read within the xrdp executable. The vulnerability allows
an out-of-bounds read within a potentially privileged process. On
non-Debian platforms, xrdp tends to run as root. Potentially an
out-of-bounds write can follow the out-of-bounds read. There is no
denial-of-service impact, providing xrdp is running in forking mode.
(CVE-2023-42822)

References:
- https://bugs.mageia.org/show_bug.cgi?id=32575
- https://lwn.net/Articles/952920/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42822

SRPMS:
- 9/core/xrdp-0.9.23.1-1.mga9

Mageia 2023-0334: xrdp security update

The updated packages fix a security vulnerability Access to the font glyphs in xrdp_painter.c is not bounds-checked

Summary

The updated packages fix a security vulnerability
Access to the font glyphs in xrdp_painter.c is not bounds-checked. Since some of this data is controllable by the user, this can result in an out-of-bounds read within the xrdp executable. The vulnerability allows an out-of-bounds read within a potentially privileged process. On non-Debian platforms, xrdp tends to run as root. Potentially an out-of-bounds write can follow the out-of-bounds read. There is no denial-of-service impact, providing xrdp is running in forking mode. (CVE-2023-42822)

References

- https://bugs.mageia.org/show_bug.cgi?id=32575

- https://lwn.net/Articles/952920/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42822

Resolution

MGASA-2023-0334 - Updated xrdp packages fix security vulnerability

SRPMS

- 9/core/xrdp-0.9.23.1-1.mga9

Severity
Publication date: 01 Dec 2023
URL: https://advisories.mageia.org/MGASA-2023-0334.html
Type: security
CVE: CVE-2023-42822

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