Heap-based Buffer Overflow Affecting tigervnc-selinux package, versions <0:1.13.1-3.el9_3.6


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-ORACLE9-TIGERVNCSELINUX-6219938
  • published1 Feb 2024
  • disclosed28 Feb 2024

Introduced: 1 Feb 2024

CVE-2024-21885  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Oracle:9 tigervnc-selinux to version 0:1.13.1-3.el9_3.6 or higher.
This issue was patched in ELSA-2024-0557.

NVD Description

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

A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.

CVSS Scores

version 3.1