UBUNTU-CVE-2018-18690

    Dashboard / Vulnerabilities / UBUNTU-CVE-2018-18690

    UBUNTU-CVE-2018-18690

    Published: 26 Oct 2018Last Modified: 26 Aug 2026
    Upstream:
    CVE-2018-18690
    Aliases:
    USN-3847-1
    USN-3847-2
    USN-3847-3

    Summary:

    Details: In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.

    References: https://ubuntu.com/security/CVE-2018-18690, https://ubuntu.com/security/notices/USN-3847-1, https://ubuntu.com/security/notices/USN-3847-2, https://ubuntu.com/security/notices/USN-3847-3, https://ubuntu.com/security/notices/USN-3848-1, https://ubuntu.com/security/notices/USN-3848-2, https://ubuntu.com/security/notices/USN-3849-1, https://ubuntu.com/security/notices/USN-3849-2, https://www.cve.org/CVERecord?id=CVE-2018-18690

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-164.214

    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
    UBUNTU-CVE-2018-18690 | CVE-DB