MGASA-2020-0412 - Updated sddm package fixes a security vulnerability

Publication date: 10 Nov 2020
URL: https://advisories.mageia.org/MGASA-2020-0412.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2020-28049

Fabian Vogt discovered a flaw in sddm before 0.19.0. A local attacker can take
advantage of a race condition when creating the Xauthority file to escalate
privileges (CVE-2020-28049).

References:
- https://bugs.mageia.org/show_bug.cgi?id=27565
- https://www.debian.org/security/2020/dsa-4783
- https://www.openwall.com/lists/oss-security/2020/11/04/2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28049

SRPMS:
- 7/core/sddm-0.18.1-3.1.mga7

Mageia 2020-0412: sddm security update

Fabian Vogt discovered a flaw in sddm before 0.19.0

Summary

Fabian Vogt discovered a flaw in sddm before 0.19.0. A local attacker can take advantage of a race condition when creating the Xauthority file to escalate privileges (CVE-2020-28049).

References

- https://bugs.mageia.org/show_bug.cgi?id=27565

- https://www.debian.org/security/2020/dsa-4783

- https://www.openwall.com/lists/oss-security/2020/11/04/2

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28049

Resolution

MGASA-2020-0412 - Updated sddm package fixes a security vulnerability

SRPMS

- 7/core/sddm-0.18.1-3.1.mga7

Severity
Publication date: 10 Nov 2020
URL: https://advisories.mageia.org/MGASA-2020-0412.html
Type: security
CVE: CVE-2020-28049

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