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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History
Tue, 15 Oct 2024 18:15:00 +0000
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MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2020-11-04T00:00:00
Updated: 2024-10-15T18:10:25.839Z
Reserved: 2020-11-02T00:00:00
Link: CVE-2020-28049
Vulnrichment
Updated: 2024-08-04T16:33:56.915Z
NVD
Status : Modified
Published: 2020-11-04T19:15:12.137
Modified: 2024-11-21T05:22:16.820
Link: CVE-2020-28049
Redhat
No data.