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.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core tigervnc Not Affected
Amazon Linux 2023 tigervnc Pending Fix
Amazon Linux 1 xorg-x11-server No Fix Planned
Amazon Linux 2 - Core xorg-x11-server Not Affected
Amazon Linux 2023 xorg-x11-server Pending Fix
Amazon Linux 2023 xorg-x11-server-Xwayland Pending Fix

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