Stack-based Buffer Overflow Affecting tigervnc-icons package, versions <0:1.13.1-15.el8_10


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ALMALINUX8-TIGERVNCICONS-9462733
  • published18 Mar 2025
  • disclosed10 Mar 2025

Introduced: 10 Mar 2025

NewCVE-2025-26595  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 tigervnc-icons to version 0:1.13.1-15.el8_10 or higher.
This issue was patched in ALSA-2025:2502.

NVD Description

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

A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.

CVSS Base Scores

version 3.1