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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2020-11-04T00:00:00
Updated: 2024-08-04T16:33:56.915Z
Reserved: 2020-11-02T00:00:00
Link: CVE-2020-28049
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-11-04T19:15:12.137
Modified: 2024-02-03T07:15:14.473
Link: CVE-2020-28049
Redhat
No data.