Xorg-x11-server: heap buffer overread/data leakage in procxipassivegrabdevice

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Summary

CVECVE-2024-31081
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-04 14:15:10 UTC
Updated2026-11-04 22:17:20 UTC
DescriptionA heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

Risk And Classification

Primary CVSS: v3.1 7.3 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

EPSS: 0.005170000 probability, percentile 0.441340000 (date 2026-11-04)

Problem Types: CWE-126 | CWE-126 Buffer Over-read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.3HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
3.1CNACVSS7.3HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION unaffected 0:1.1.0-25.el6_10.13 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 7 unaffected 0:1.20.4-29.el7_9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 7 unaffected 0:1.8.0-33.el7_9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.13.1-2.el8_9.10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.20.11-23.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.13.1-10.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:21.1.3-16.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 0:1.9.0-15.el8_2.11 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service unaffected 0:1.9.0-15.el8_2.11 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions unaffected 0:1.9.0-15.el8_2.11 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:1.11.0-8.el8_4.10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 0:1.11.0-8.el8_4.10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 0:1.11.0-8.el8_4.10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support unaffected 0:1.12.0-6.el8_6.11 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 0:1.12.0-15.el8_8.10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:1.13.1-8.el9_4.3 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:23.2.7-1.el9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:1.20.11-26.el9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support unaffected 0:1.11.0-22.el9_0.11 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 0:1.12.0-14.el9_2.8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified

References

ReferenceSourceLinkTags
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
access.redhat.com/security/cve/CVE-2024-31081 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2036 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2038 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
bugzilla.redhat.com/show_bug.cgi af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
access.redhat.com/errata/RHSA-2024:3258 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:3343 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
access.redhat.com/errata/RHSA-2024:9093 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:2041 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2080 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2040 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2042 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
www.openwall.com/lists/oss-security/2024/04/12/10 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
access.redhat.com/errata/RHSA-2024:1785 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2025:12751 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:9122 [email protected] access.redhat.com
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
access.redhat.com/errata/RHSA-2024:2616 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:3261 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
www.openwall.com/lists/oss-security/2024/04/03/13 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
access.redhat.com/errata/RHSA-2024:2037 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2039 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
lists.debian.org/debian-lts-announce/2024/04/msg00009.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2024-03-28T00:00:00.000ZReported to Red Hat.
CNA2024-04-03T00:00:00.000ZMade public.

Workarounds

CNA: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Legacy QID Mappings

  • 161485 Oracle Enterprise Linux Security Update for x.org server (ELSA-2024-1785)
  • 200239 Ubuntu Security Notification for X.Org X Server Vulnerabilities (USN-6721-1)
  • 243192 Red Hat Update for x.org server (RHSA-2024:1785)
  • 510792 Alpine Linux Security Update for xorg-server
  • 510793 Alpine Linux Security Update for xwayland
  • 6000566 Debian Security Update for xorg-server (DSA 5657-1)
  • 691466 Free Berkeley Software Distribution (FreeBSD) Security Update for xorg server (57561cfc-f24b-11ee-9730-001fc69cd6dc)
  • 756106 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2024:1199-1)
  • 756126 SUSE Enterprise Linux Security Update for xwayland (SUSE-SU-2024:1265-1)
  • 756127 SUSE Enterprise Linux Security Update for xwayland (SUSE-SU-2024:1264-1)
  • 756129 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2024:1262-1)
  • 756130 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2024:1261-1)
  • 756131 SUSE Enterprise Linux Security Update for xorg-x11-server (SUSE-SU-2024:1260-1)

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