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
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2436-1 | sddm security update |
Debian DSA |
DSA-4783-1 | sddm security update |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 15 Oct 2024 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-10-15T18:10:25.839Z
Reserved: 2020-11-02T00:00:00
Link: CVE-2020-28049
Updated: 2024-08-04T16:33:56.915Z
Status : Modified
Published: 2020-11-04T19:15:12.137
Modified: 2024-11-21T05:22:16.820
Link: CVE-2020-28049
No data.
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA