Heap-based Buffer Overflow Affecting tigervnc-server-module package, versions <0:1.14.1-1.el9_5.1


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE9-TIGERVNCSERVERMODULE-9397602
  • published12 Mar 2025
  • disclosed25 Feb 2025

Introduced: 25 Feb 2025

NewCVE-2025-26597  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Oracle:9 tigervnc-server-module to version 0:1.14.1-1.el9_5.1 or higher.
This issue was patched in ELSA-2025-2500.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server-module package and not the tigervnc-server-module package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.

CVSS Base Scores

version 3.1