UBUNTU-CVE-2018-14619

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    UBUNTU-CVE-2018-14619

    Published: 30 Aug 2018Last Modified: 16 Jul 2025
    Upstream:
    CVE-2018-14619

    Summary:

    Details: A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.

    References: https://ubuntu.com/security/CVE-2018-14619, https://git.kernel.org/linus/b32a7dc8aef1882fbf983eb354837488cc9d54dc, http://www.openwall.com/lists/oss-security/2018/08/28/1, https://www.cve.org/CVERecord?id=CVE-2018-14619

    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 -4.15.0-1023.24~14.04.1

    Affected versions

    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