UBUNTU-CVE-2019-9213

    Dashboard / Vulnerabilities / UBUNTU-CVE-2019-9213

    UBUNTU-CVE-2019-9213

    Published: 5 Mar 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-9213
    Aliases:
    USN-3930-1
    USN-3930-2
    USN-3931-1

    Summary:

    Details: In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

    References: https://ubuntu.com/security/CVE-2019-9213, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1, 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://ubuntu.com/security/notices/USN-3932-1, https://ubuntu.com/security/notices/USN-3932-2, https://ubuntu.com/security/notices/USN-3933-1, https://ubuntu.com/security/notices/USN-3933-2, https://www.cve.org/CVERecord?id=CVE-2019-9213

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-168.218

    Affected versions

    3.11.0-12.19

    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