CVE-2023-5367

Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty

HIGH
7.8
CVSS Score
Published: October 25, 2023 at 07:46 PM UTC
Updated: June 23, 2026 at 07:34 PM UTC
12 products affected across 4 vendorsDebian LinuxFedoraEnterprise Linux

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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.

Affected

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

Vendor states this is fixed in 0:1.1.0-25.el6_10.13 (unaffected)
Vendor states this is fixed in 0:1.11.0-22.el9_0.3 (unaffected)
Vendor states this is fixed in 0:1.11.0-8.el8_4.3 (unaffected)
Vendor states this is fixed in 0:1.12.0-14.el9_2 (unaffected)
Vendor states this is fixed in 0:1.12.0-15.el8_8.1 (unaffected)
Vendor states this is fixed in 0:1.12.0-6.el8_6.4 (unaffected)
Vendor states this is fixed in 0:1.13.1-2.el8_9.1 (unaffected)
Vendor states this is fixed in 0:1.13.1-3.el9_3.3 (unaffected)
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 0:1.20.4-24.el7_9 (unaffected)
Vendor states this is fixed in 0:1.8.0-26.el7_9 (unaffected)
Vendor states this is fixed in 0:1.9.0-15.el8_2.4 (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 6 (unknown)

References (32)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:6802
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:6808
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7373
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7388
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7405
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7428
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7436
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7526

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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