Security Advisory

CVE-2020-28049

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2020-11-04 00:00:00

Last updated 2024-10-15 18:10:25

Assigner mitre

State PUBLISHED

Description

An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.

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