Out-of-bounds Write Affecting tigervnc-server package, versions <0:1.11.0-8.el8_4.5


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
32.21% (98th percentile)

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  • Snyk IDSNYK-RHEL8-TIGERVNCSERVER-6142882
  • published3 Jan 2024
  • disclosed13 Dec 2023

Introduced: 13 Dec 2023

CVE-2023-6377  (opens in a new tab)
CWE-787  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 tigervnc-server to version 0:1.11.0-8.el8_4.5 or higher.
This issue was patched in RHSA-2024:0016.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server package and not the tigervnc-server package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

CVSS Scores

version 3.1