CVE-2025-49177
Public on 2025-06-17
Modified on 2025-06-20
Description
A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | tigervnc | Not Affected | ||
| Amazon Linux 2023 | tigervnc | 2025-07-10 | ALAS2023-2025-1060 | Fixed |
| Amazon Linux 1 | xorg-x11-server | No Fix Planned | ||
| Amazon Linux 2 - Core | xorg-x11-server | Not Affected | ||
| Amazon Linux 2023 | xorg-x11-server | 2025-07-10 | ALAS2023-2025-1061 | Fixed |
| Amazon Linux 2023 | xorg-x11-server-Xwayland | 2025-07-10 | ALAS2023-2025-1062 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv3 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L |