CVE-2018-6558

    Dashboard / Vulnerabilities / CVE-2018-6558

    CVE-2018-6558

    Published: 23 Aug 2018Last Modified: 8 Jul 2026

    Summary:

    Details: 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: https://github.com/google/fscrypt/issues/77, https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b, https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66, https://launchpad.net/bugs/1787548

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -1e1b67dae6c3ae3b5acb5ce377b01b286c3e676b

    Affected versions

    v0.2.3
    v0.2.2
    v0.2.1
    v0.2.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High