CVE-2019-12210

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    CVE-2019-12210

    Published: 4 Jun 2019Last Modified: 8 Jul 2026

    Summary:

    Details: In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

    References: http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html, http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html, https://developers.yubico.com/pam-u2f/Release_Notes.html, https://github.com/Yubico/pam-u2f/commit/18b1914e32b74ff52000f10e97067e841e5fff62, http://www.openwall.com/lists/oss-security/2019/06/05/1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -18b1914e32b74ff52000f10e97067e841e5fff62

    Affected versions

    pam_u2f-1.0.7
    pam_u2f-1.0.6
    pam_u2f-1.0.5
    pam_u2f-1.0.4
    pam_u2f-1.0.3
    pam_u2f-1.0.2
    pam_u2f-1.0.1
    pam_u2f-1.0.0

    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-2019-12210 | CVE-DB