UBUNTU-CVE-2019-8912

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    UBUNTU-CVE-2019-8912

    Published: 18 Feb 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-8912
    Aliases:
    USN-3930-1
    USN-3930-2
    USN-3931-1

    Summary:

    Details: In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.

    References: https://ubuntu.com/security/CVE-2019-8912, https://ubuntu.com/security/notices/USN-3930-1, https://ubuntu.com/security/notices/USN-3930-2, https://ubuntu.com/security/notices/USN-3931-1, https://ubuntu.com/security/notices/USN-3931-2, https://www.cve.org/CVERecord?id=CVE-2019-8912

    Affected packages

    Package

    Name: linux-azure

    Purl: pkg:deb/ubuntu/[email protected]~14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.15.0-1041.45~14.04.1

    Affected versions

    4.15.0-1023.24~14.04.1
    4.15.0-1030.31~14.04.1
    4.15.0-1031.32~14.04.1
    4.15.0-1032.33~14.04.2
    4.15.0-1035.36~14.04.2
    4.15.0-1036.38~14.04.2
    4.15.0-1037.39~14.04.2
    4.15.0-1039.41~14.04.2
    4.15.0-1040.44~14.04.1

    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