CVE-2018-6558

Published: Aug 23, 2018Modified: Jun 17, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

The pam_fscrypt module in fscrypt before 0.2.4 may incorrectly restore primary and supplementary group IDs to the values associated with the root user, which allows attackers to gain privileges via a successful login through certain applications that use Linux-PAM (aka pam).

Affected (1)

Products: Google: Fscrypt

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Google Fscrypt	Before 0.2.4

References (8)

https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b

Source: security@ubuntu.com

PatchThird Party Advisory

https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66

Source: security@ubuntu.com

PatchThird Party Advisory

https://github.com/google/fscrypt/issues/77

Source: security@ubuntu.com

Issue TrackingThird Party Advisory

https://launchpad.net/bugs/1787548

Source: security@ubuntu.com

Issue TrackingPatchThird Party Advisory

https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://github.com/google/fscrypt/issues/77

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingThird Party Advisory

https://launchpad.net/bugs/1787548

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

Timeline

No history available yet.