Vigil@nce - systemd: use after free via Asynchronous Polkit Queries
April 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: openSUSE Leap, RHEL, SUSE Linux Enterprise
Desktop, SLES, Ubuntu.
Severity: 2/4.
Consequences: administrator access/rights, privileged
access/rights, denial of service on service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 06/02/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
Asynchronous Polkit Queries of systemd, in order to trigger a
denial of service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/systemd-use-after-free-via-Asynchronous-Polkit-Queries-31527