UBUNTU-CVE-2019-12210

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    UBUNTU-CVE-2019-12210

    Published: 4 Jun 2019Last Modified: 8 Sept 2025
    Upstream:
    CVE-2019-12210

    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: https://ubuntu.com/security/CVE-2019-12210, https://www.openwall.com/lists/oss-security/2019/06/05/1, https://developers.yubico.com/pam-u2f/Release_Notes.html, https://www.cve.org/CVERecord?id=CVE-2019-12210

    Affected packages

    Package

    Name: pam-u2f

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.0.1-1
    1.0.2-1
    1.0.3-1

    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
    UBUNTU-CVE-2019-12210 | CVE-DB