CVE-2019-3844 — Vulnetix

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CVE-2019-3844 PUBLISHED

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.

EPSS 0.16% · 36.4th percentile

Risk Scores

EPSS Score

0.16%

36.4th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	systemd	0, 234-2ubuntu12, 235-2ubuntu3

Timeline

Apr 26, 2019 PoC Published
Apr 26, 2019 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Jun 29, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 4, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2019-3844 third-party-advisory
https://ubuntu.com/security/notices/USN-4269-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2019-3844 third-party-advisory

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