Vulnerability · Published Oct 10, 2023 · Assigned by redhat
CVE-2023-43785Libx11: out-of-bounds memory access in _xkbreadkeysyms()
Medium 6.5
In plain English
A medium-severity out-of-bounds write in libX11. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.7%top 47.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libX11 | 1.6.8-8.el8 | ALSA-2024:2973 |
| AlmaLinux:9 | libX11 | 1.7.0-9.el9 | ALSA-2024:2145 |
| AlmaLinux:8 | libX11-common | 1.6.8-8.el8 | ALSA-2024:2973 |
| AlmaLinux:9 | libX11-common | 1.7.0-9.el9 | ALSA-2024:2145 |
| AlmaLinux:8 | libX11-devel | 1.6.8-8.el8 | ALSA-2024:2973 |
| AlmaLinux:9 | libX11-devel | 1.7.0-9.el9 | ALSA-2024:2145 |
| AlmaLinux:8 | libX11-xcb | 1.6.8-8.el8 | ALSA-2024:2973 |
| AlmaLinux:9 | libX11-xcb | 1.7.0-9.el9 | ALSA-2024:2145 |
| Alpine:v3.20 | libx11 | 1.8.7-r0 | ALPINE-CVE-2023-43785 |
| Alpine:v3.21 | libx11 | 1.8.7-r0 | ALPINE-CVE-2023-43785 |
| Alpine:v3.22 | libx11 | 1.8.7-r0 | ALPINE-CVE-2023-43785 |
| Alpine:v3.23 | libx11 | 1.8.7-r0 | ALPINE-CVE-2023-43785 |
| Alpine:v3.24 | libx11 | 1.8.7-r0 | ALPINE-CVE-2023-43785 |
| Debian:12 | libx11 | 2:1.8.4-2+deb12u2 | DSA-5517-1 |
| Debian:12 | libx11 | 2:1.8.4-2+deb12u2 | DEBIAN-CVE-2023-43785 |
| Debian:13 | libx11 | 2:1.8.7-1 | DEBIAN-CVE-2023-43785 |
| Debian:14 | libx11 | 2:1.8.7-1 | DEBIAN-CVE-2023-43785 |
| Rocky Linux:8 | libX11 | 0:1.6.8-8.el8 | RLSA-2024:2973 |
| Rocky Linux:9 | libX11 | 0:1.7.0-9.el9 | RLSA-2024:2145 |
| Ubuntu:22.04:LTS | libx11 | 2:1.7.5-1ubuntu0.3 | UBUNTU-CVE-2023-43785 |
| Ubuntu:22.04:LTS | libx11 | 2:1.7.5-1ubuntu0.3 | USN-6407-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| libX11 | 0 – before 1.8.7 | |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References
- RHSA-2024:2145 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:2973 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2023-43785 vdb-entry, x_refsource_REDHAT
- RHBZ#2242252 issue-tracking, x_refsource_REDHAT
- https://security.netapp.com/advisory/ntap-20231103-0006/ x_transferred
- https://lists.debian.org/debian-lts-announce/2023/10/msg00004.html