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Out-of-bounds Write Affecting xorg-x11-server-devel package, versions <0:1.20.11-24.el9

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-ALMALINUX9-XORGX11SERVERDEVEL-6811161
  • published 7 May 2024
  • disclosed 30 Apr 2024
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Introduced: 30 Apr 2024

CVE-2024-0409 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 xorg-x11-server-devel to version 0:1.20.11-24.el9 or higher.
This issue was patched in ALSA-2024:2169.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-devel package and not the xorg-x11-server-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

References

CVSS Scores

version 3.1
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NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

7.8 high
Expand this section

SUSE

5.5 medium