Vulnerability · Published Dec 14, 2022 · Assigned by redhat
CVE-2022-46343
High 8.8
In plain English
A high-severity use-after-free in xorg-x11-server. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 85% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)2.6%top 14.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | tigervnc | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-icons | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-icons | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-license | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-license | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-selinux | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-selinux | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-server | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-server | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-server-minimal | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-server-minimal | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | tigervnc-server-module | 1.12.0-15.el8_8 | ALSA-2023:2830 |
| AlmaLinux:9 | tigervnc-server-module | 1.12.0-13.el9_2 | ALSA-2023:2257 |
| AlmaLinux:8 | xorg-x11-server-Xdmx | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-Xdmx | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-Xephyr | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-Xephyr | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-Xnest | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-Xnest | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-Xorg | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-Xorg | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-Xvfb | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-Xvfb | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-Xwayland | 21.1.3-10.el8 | ALSA-2023:2805 |
| AlmaLinux:9 | xorg-x11-server-Xwayland | 21.1.3-7.el9 | ALSA-2023:2249 |
| AlmaLinux:8 | xorg-x11-server-common | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-common | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-devel | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-devel | 1.20.11-17.el9 | ALSA-2023:2248 |
| AlmaLinux:8 | xorg-x11-server-source | 1.20.11-15.el8 | ALSA-2023:2806 |
| AlmaLinux:9 | xorg-x11-server-source | 1.20.11-17.el9 | ALSA-2023:2248 |
| Alpine:v3.20 | xorg-server | 21.1.5-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.21 | xorg-server | 21.1.5-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.22 | xorg-server | 21.1.5-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.23 | xorg-server | 21.1.5-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.24 | xorg-server | 21.1.5-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.20 | xwayland | 22.1.6-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.21 | xwayland | 22.1.6-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.22 | xwayland | 22.1.6-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.23 | xwayland | 22.1.6-r0 | ALPINE-CVE-2022-46343 |
| Alpine:v3.24 | xwayland | 22.1.6-r0 | ALPINE-CVE-2022-46343 |
| Debian:12 | xorg-server | 2:21.1.5-1 | DEBIAN-CVE-2022-46343 |
| Debian:13 | xorg-server | 2:21.1.5-1 | DEBIAN-CVE-2022-46343 |
| Debian:14 | xorg-server | 2:21.1.5-1 | DEBIAN-CVE-2022-46343 |
| Debian:12 | xwayland | 2:22.1.6-1 | DEBIAN-CVE-2022-46343 |
| Debian:13 | xwayland | 2:22.1.6-1 | DEBIAN-CVE-2022-46343 |
| Debian:14 | xwayland | 2:22.1.6-1 | DEBIAN-CVE-2022-46343 |
| Ubuntu:22.04:LTS | xorg-server | 2:21.1.3-2ubuntu2.5 | USN-5778-1 |
| Ubuntu:22.04:LTS | xorg-server | 2:21.1.3-2ubuntu2.5 | UBUNTU-CVE-2022-46343 |
| Ubuntu:22.04:LTS | xwayland | 2:22.1.1-1ubuntu0.4 | UBUNTU-CVE-2022-46343 |
| Ubuntu:22.04:LTS | xwayland | 2:22.1.1-1ubuntu0.4 | USN-5778-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | xorg-x11-server | xorg-x11-server-1.20.4 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://access.redhat.com/security/cve/CVE-2022-46343
- https://bugzilla.redhat.com/show_bug.cgi?id=2151758
- FEDORA-2022-c3a65f7c65 vendor-advisory
- FEDORA-2022-721a78b7e5 vendor-advisory
- DSA-5304 vendor-advisory
- FEDORA-2022-dd3eb7e0a8 vendor-advisory
- https://security.gentoo.org/glsa/202305-30