CVE-2024-21885
Public on 2024-01-18
Modified on 2024-10-23
Description
A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | xorg-x11-server | 2024-04-25 | ALAS-2024-1932 | Fixed |
| Amazon Linux 2 - Core | xorg-x11-server | 2024-02-15 | ALAS2-2024-2455 | Fixed |
| Amazon Linux 2023 | xorg-x11-server | 2024-02-15 | ALAS2023-2024-522 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |