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Vulnerability · Published Feb 28, 2024 · Assigned by redhat

CVE-2024-21886Xorg-x11-server: heap buffer overflow in disabledevice

High 7.8

In plain English

A high-severity heap buffer overflow in xorg-server. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.4%top 27.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8tigervnc1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-icons1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-icons1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-license1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-license1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-selinux1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-selinux1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-server1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-server1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-server-minimal1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-server-minimal1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8tigervnc-server-module1.13.1-2.el8_9.7.alma.1ALSA-2024:0607
AlmaLinux:9tigervnc-server-module1.13.1-3.el9_3.6.alma.1ALSA-2024:0557
AlmaLinux:8xorg-x11-server-Xdmx1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-Xdmx1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-Xephyr1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-Xephyr1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-Xnest1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-Xnest1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-Xorg1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-Xorg1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-Xvfb1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-Xvfb1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-Xwayland21.1.3-15.el8ALSA-2024:2996
AlmaLinux:9xorg-x11-server-Xwayland22.1.9-5.el9ALSA-2024:2170
AlmaLinux:8xorg-x11-server-common1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-common1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-devel1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-devel1.20.11-24.el9ALSA-2024:2169
AlmaLinux:8xorg-x11-server-source1.20.11-22.el8ALSA-2024:2995
AlmaLinux:9xorg-x11-server-source1.20.11-24.el9ALSA-2024:2169
Alpine:v3.20xorg-server21.1.11-r0ALPINE-CVE-2024-21886
Alpine:v3.21xorg-server21.1.11-r0ALPINE-CVE-2024-21886
Alpine:v3.22xorg-server21.1.11-r0ALPINE-CVE-2024-21886
Alpine:v3.23xorg-server21.1.11-r0ALPINE-CVE-2024-21886
Alpine:v3.24xorg-server21.1.11-r0ALPINE-CVE-2024-21886
Alpine:v3.20xwayland23.2.4-r0ALPINE-CVE-2024-21886
Alpine:v3.21xwayland23.2.4-r0ALPINE-CVE-2024-21886
Alpine:v3.22xwayland23.2.4-r0ALPINE-CVE-2024-21886
Alpine:v3.23xwayland23.2.4-r0ALPINE-CVE-2024-21886
Alpine:v3.24xwayland23.2.4-r0ALPINE-CVE-2024-21886
Debian:12xorg-server2:21.1.7-3+deb12u5DEBIAN-CVE-2024-21886
Debian:12xorg-server2:21.1.7-3+deb12u5DSA-5603-1
Debian:13xorg-server2:21.1.11-1DEBIAN-CVE-2024-21886
Debian:14xorg-server2:21.1.11-1DEBIAN-CVE-2024-21886
Debian:12xwaylandno fix listedDEBIAN-CVE-2024-21886
Debian:13xwayland2:23.2.4-1DEBIAN-CVE-2024-21886
Debian:14xwayland2:23.2.4-1DEBIAN-CVE-2024-21886
Rocky Linux:8tigervnc0:1.13.1-2.el8_9.7RLSA-2024:0607
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.7USN-6587-1
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.7UBUNTU-CVE-2024-21886
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.10USN-6587-1
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.10UBUNTU-CVE-2024-21886
Ubuntu:24.04:LTSxwayland2:23.2.4-1UBUNTU-CVE-2024-21886

Affected products (as reported)

VendorProductVersions
xorg-server 1.21.1.7
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References