CVE-2019-3843

It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.

CVSS v3.1

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

CVSS v3.0

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

CVSS v2.0

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

EPSS

0.94% chance of exploitation in the next 30 days, 58th percentile

Published

2019-04-26

Updated

2025-06-09

ExploitDB entries (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2019-3842
• CVE-2019-3844
• CVE-2019-3832
• CVE-2019-3910
• CVE-2019-3814
• CVE-2019-3911