UBUNTU-CVE-2018-9275

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    UBUNTU-CVE-2018-9275

    Published: 4 Apr 2018Last Modified: 24 Oct 2025
    Upstream:
    CVE-2018-9275

    Summary:

    Details: In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).

    References: https://ubuntu.com/security/CVE-2018-9275, https://bugzilla.opensuse.org/show_bug.cgi?id=1088027, https://github.com/Yubico/yubico-pam/issues/136, https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba, https://www.cve.org/CVERecord?id=CVE-2018-9275

    Affected packages

    Package

    Name: yubico-pam

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.19-1

    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