CVE-2024-0229 | Xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access

An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

Published: 2024-02-09 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-0229 is rated Moderate Risk (54.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.23%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-0229

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.32% 1.23% +0.91%
2 2025-11-21 0.56% 0.32% -0.24%
3 2025-11-18 — 0.56% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-0229

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2024-0229

OS Trackers for CVE-2024-0229

vendor priority summary link
alpine — CVE-2024-0229: 2 source package rows (xorg-server, xwayland); 10 state rows across 5 repos (3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2024-0229
debian not yet assigned CVE-2024-0229 not yet assigned priority: Debian including 2 source packages (xorg-server, xwayland), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 8, open 1. https://security-tracker.debian.org/tracker/CVE-2024-0229
gentoo normal CVE-2024-0229: 1 GLSA(s) (202401-30), 2 atom(s) (x11-base/xorg-server, x11-base/xwayland); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-0229
redhat high — https://access.redhat.com/security/cve/CVE-2024-0229
suse high — https://www.suse.com/security/cve/CVE-2024-0229/
ubuntu medium CVE-2024-0229 medium priority: Ubuntu including 11 source packages (xorg, xorg-hwe-16.04, …), 132 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 84, released 19, not-affected 14, needs-triage 10, ignored 5. https://ubuntu.com/security/CVE-2024-0229

Affected software / configurations for CVE-2024-0229

Vendor Product Version Raw CPE
x.org x_server < 21.1.11 cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
x.org xwayland < 23.2.4 cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
redhat enterprise_linux_aus 8.2 cpe:2.3:o:redhat:enterprise_linux_aus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_aus 8.4 cpe:2.3:o:redhat:enterprise_linux_aus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.6 cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.8 cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_eus 9.0 cpe:2.3:o:redhat:enterprise_linux_eus:9.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_tus 8.2 cpe:2.3:o:redhat:enterprise_linux_tus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_tus 8.4 cpe:2.3:o:redhat:enterprise_linux_tus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.2 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.4 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*

References for CVE-2024-0229

URL Tags
https://access.redhat.com/errata/RHSA-2024:0320 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0557 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0558 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0597 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0607 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0614 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0617 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0621 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0626 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0629 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2169 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2170 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2995 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2996 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:12751
https://access.redhat.com/security/cve/CVE-2024-0229 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2256690 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00016.html
https://lists.fedoraproject.org/archives/list/[email protected]/message/5J4H7CH565ALSZZYKOJFYDA5KFLG6NUK/
https://lists.fedoraproject.org/archives/list/[email protected]/message/EJBMCWQ54R6ZL3MYU2D2JBW6JMZL7BQW/
https://lists.fedoraproject.org/archives/list/[email protected]/message/IZ75X54CN4IFYMIV7OK3JVZ57FHQIGIC/
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