CVE-2019-3843
moderate-risk
Published 2019-04-26
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.
Do I need to act?
-
0.12% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10
High
LOCAL
/ LOW complexity
Affected Products (9)
Affected Vendors
References (14)
Third Party Advisory
http://www.securityfocus.com/bid/108116
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3843
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190619-0002/
Third Party Advisory
https://usn.ubuntu.com/4269-1/
Third Party Advisory
http://www.securityfocus.com/bid/108116
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3843
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190619-0002/
Third Party Advisory
https://usn.ubuntu.com/4269-1/
47
/ 100
moderate-risk
Severity
24/34 · High
Exploitability
8/34 · Low
Exposure
15/34 · Moderate