CVE-2020-27780

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    CVE-2020-27780

    Published: 18 Dec 2020Last Modified: 7 Aug 2026

    Summary:

    Details: A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

    References: https://bugzilla.redhat.com/show_bug.cgi?id=1901094

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 62d826471e87e27b39a36ccbeee58999e2514a92
    Fixed -225f17470eed9f44282f435ad1ed64c94d9a2ddf

    Affected versions

    v1.5.0

    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
    CVE-2020-27780 | CVE-DB