Vulnerability Details 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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.1%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.9
References
- https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b
- https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66
- https://github.com/google/fscrypt/issues/77
- https://launchpad.net/bugs/1787548
- https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b
- https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66
- https://github.com/google/fscrypt/issues/77
- https://launchpad.net/bugs/1787548
Products affected by CVE-2018-6558
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cpe:2.3:a:google:fscrypt:0.1.0
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cpe:2.3:a:google:fscrypt:0.2.0
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cpe:2.3:a:google:fscrypt:0.2.1
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cpe:2.3:a:google:fscrypt:0.2.2
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cpe:2.3:a:google:fscrypt:0.2.3