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Privilege Chaining The advisory has been revoked - it doesn't affect any version of package systemd Open this link in a new tab

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
7.8 high
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Red Hat
4.5 medium
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SUSE
4.5 medium

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  • Snyk ID SNYK-UBUNTU1810-SYSTEMD-345490
  • published 26 Apr 2019
  • disclosed 26 Apr 2019
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Introduced: 26 Apr 2019

CVE-2019-3844 Open this link in a new tab
CWE-268 Open this link in a new tab

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu.

It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.

References