DEBIAN-CVE-2020-28049
- Source
- https://security-tracker.debian.org/tracker/CVE-2020-28049
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-28049.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-28049
- Upstream
- Downstream
- Published
- 2020-11-04T19:15:12.137Z
- Modified
- 2026-03-11T07:31:59.724408Z
- Severity
-
- 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:11 / sddm
Package
- Name
- sddm
- Purl
- pkg:deb/debian/sddm?arch=source
Debian:12 / sddm
Package
- Name
- sddm
- Purl
- pkg:deb/debian/sddm?arch=source
Debian:13 / sddm
Package
- Name
- sddm
- Purl
- pkg:deb/debian/sddm?arch=source
Debian:14 / sddm
Package
- Name
- sddm
- Purl
- pkg:deb/debian/sddm?arch=source