CVE-2024-0409

Xorg-x11-server: selinux context corruption

HIGH
7.8
CVSS Score
Published: January 18, 2024 at 03:40 PM UTC
Updated: June 17, 2026 at 06:53 AM UTC
12 products affected across 4 vendorsFedoraEnterprise LinuxEnterprise Linux Desktop

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 0:1.20.11-22.el8 (unaffected)
Vendor states this is fixed in 0:1.20.11-24.el9 (unaffected)
Vendor states this is fixed in 0:1.20.4-27.el7_9 (unaffected)
Vendor states this is fixed in 0:21.1.3-15.el8 (unaffected)
Vendor states this is fixed in 0:22.1.9-5.el9 (unaffected)
Vendor states this is fixed in 7 (unaffected)
Vendor states this is fixed in 6 (unknown)
v < 1.13.1
Affected range stops below 1.13.1, so it looks safe — our inference, not a vendor statement

References (13)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:0320
VDB Entryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/security/cve/CVE-2024-0409
Issue Trackingx_refsource_REDHATThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257690
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/01/msg00016.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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