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).
References (4)
Core 4
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/google/fscrypt/issues/77
Patch, Third Party Advisory x_refsource_misc
https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b
Patch, Third Party Advisory x_refsource_misc
https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://launchpad.net/bugs/1787548
Scores
CVSS v3
6.5
EPSS
0.0062
EPSS Percentile
45.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Details
Status
published
Products (2)
google/fscrypt
< 0.2.4
google/fscrypt
0 - 0.2.4Go
Published
Aug 23, 2018
Tracked Since
Feb 18, 2026