CVE-2019-3844

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.

Affected

[freedesktop.org] · systemd

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 REDHAT

4.5 MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 NVD

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.92% chance of exploitation in the next 30 days, 59th percentile

Published

2019-04-26

Updated

2025-06-09

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/46760

Security advisories

• http://www.securityfocus.com/bid/108096
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3844
• https://security.netapp.com/advisory/ntap-20190619-0002
• https://usn.ubuntu.com/4269-1

References

• CVE Record
• NVD entry