Vulnerability in Google Fscrypt
CVE-2018-6558
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Google Fscrypt
- The Fscrypt Project — versions before 0.2.4
References
- github.com/google/fscrypt/issues/77 (Third Party Advisory, Issue Tracking)
- github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b (Patch, Third Party Advisory)
- github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66 (Patch, Third Party Advisory)
- launchpad.net/bugs/1787548 (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-6558?
- CVE-2018-6558 is a medium-severity vulnerability in Google Fscrypt. CVSS score: 6.5/10. Published 2018-08-23.
- How severe is CVE-2018-6558?
- Medium severity. CVSS v3 base score is 6.5 out of 10.