CVE-2019-3844 Information

Description

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.

CVSS Vector

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

Reference

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/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8