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Vulnerability · Published Oct 30, 2024 · Assigned by redhat

CVE-2024-9632Xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability

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 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.9%top 40.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8tigervnc1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-icons1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-icons1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-license1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-license1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-selinux1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-selinux1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-server1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-server1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-server-minimal1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-server-minimal1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8tigervnc-server-module1.13.1-14.el8_10ALSA-2024:9540
AlmaLinux:9tigervnc-server-module1.14.1-1.el9_5ALSA-2024:10090
AlmaLinux:8xorg-x11-server-Xdmx1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xdmx1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-Xephyr1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xephyr1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-Xnest1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xnest1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-Xorg1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xorg1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-Xvfb1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xvfb1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-Xwayland21.1.3-17.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-Xwayland23.2.7-3.el9_6ALSA-2025:7165
AlmaLinux:9xorg-x11-server-Xwayland-devel23.2.7-3.el9_6ALSA-2025:7165
AlmaLinux:8xorg-x11-server-common1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-common1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-devel1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-devel1.20.11-28.el9_6ALSA-2025:7163
AlmaLinux:8xorg-x11-server-source1.20.11-25.el8_10ALSA-2024:8798
AlmaLinux:9xorg-x11-server-source1.20.11-28.el9_6ALSA-2025:7163
Alpine:v3.20xorg-server21.1.14-r0ALPINE-CVE-2024-9632
Alpine:v3.21xorg-server21.1.14-r0ALPINE-CVE-2024-9632
Alpine:v3.22xorg-server21.1.14-r0ALPINE-CVE-2024-9632
Alpine:v3.23xorg-server21.1.14-r0ALPINE-CVE-2024-9632
Alpine:v3.24xorg-server21.1.14-r0ALPINE-CVE-2024-9632
Alpine:v3.20xwayland24.1.4-r0ALPINE-CVE-2024-9632
Alpine:v3.21xwayland24.1.4-r0ALPINE-CVE-2024-9632
Alpine:v3.22xwayland24.1.4-r0ALPINE-CVE-2024-9632
Alpine:v3.23xwayland24.1.4-r0ALPINE-CVE-2024-9632
Alpine:v3.24xwayland24.1.4-r0ALPINE-CVE-2024-9632
Debian:12xorg-server2:21.1.7-3+deb12u8DEBIAN-CVE-2024-9632
Debian:12xorg-server2:21.1.7-3+deb12u8DSA-5800-1
Debian:13xorg-server2:21.1.13-3.1DEBIAN-CVE-2024-9632
Debian:14xorg-server2:21.1.13-3.1DEBIAN-CVE-2024-9632
Debian:12xwaylandno fix listedDEBIAN-CVE-2024-9632
Debian:13xwayland2:24.1.4-1DEBIAN-CVE-2024-9632
Debian:14xwayland2:24.1.4-1DEBIAN-CVE-2024-9632
Rocky Linux:8tigervnc0:1.13.1-14.el8_10RLSA-2024:9540
Rocky Linux:9tigervnc0:1.14.1-1.el9_5.1RLSA-2024:10090
Rocky Linux:8xorg-x11-server0:1.20.11-25.el8_10RLSA-2024:8798
Rocky Linux:9xorg-x11-server0:1.20.11-28.el9_6RLSA-2025:7163
Rocky Linux:10xorg-x11-server-Xwayland0:24.1.5-3.el10_0RLSA-2025:7458
Rocky Linux:8xorg-x11-server-Xwayland0:21.1.3-17.el8_10RLSA-2024:8798
Rocky Linux:9xorg-x11-server-Xwayland0:23.2.7-3.el9_6RLSA-2025:7165
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.12USN-7085-1
Ubuntu:22.04:LTSxorg-server2:21.1.4-2ubuntu1.7~22.04.12UBUNTU-CVE-2024-9632
Ubuntu:24.04:LTSxorg-server2:21.1.12-1ubuntu1.1UBUNTU-CVE-2024-9632
Ubuntu:24.04:LTSxorg-server2:21.1.12-1ubuntu1.1USN-7085-1
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.14USN-7085-1
Ubuntu:22.04:LTSxwayland2:22.1.1-1ubuntu0.14UBUNTU-CVE-2024-9632
Ubuntu:24.04:LTSxwayland2:23.2.6-1ubuntu0.1UBUNTU-CVE-2024-9632
Ubuntu:24.04:LTSxwayland2:23.2.6-1ubuntu0.1USN-7085-1

Affected products (as reported)

VendorProductVersions
xorg-server 1.1.1 – before 21.1.14
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 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 8.4 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 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 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 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 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