Privilege Chaining Affecting systemd package, versions <242-4
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Test your applications- Snyk ID SNYK-DEBIAN11-SYSTEMD-515789
- published 26 Apr 2019
- disclosed 26 Apr 2019
Introduced: 26 Apr 2019
CVE-2019-3844 Open this link in a new tabHow to fix?
Upgrade Debian:11 systemd to version 242-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2019-3844
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://security.netapp.com/advisory/ntap-20190619-0002/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3844
- http://www.securityfocus.com/bid/108096
- https://usn.ubuntu.com/4269-1/
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-3844
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E