UBUNTU-CVE-2015-8952

    Dashboard / Vulnerabilities / UBUNTU-CVE-2015-8952

    UBUNTU-CVE-2015-8952

    Published: 16 Oct 2016Last Modified: 26 Aug 2026
    Upstream:
    CVE-2015-8952

    Summary:

    Details: The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.

    References: https://ubuntu.com/security/CVE-2015-8952, http://seclists.org/oss-sec/2016/q3/378, https://lwn.net/Articles/668718/, https://ubuntu.com/security/notices/USN-3582-1, https://ubuntu.com/security/notices/USN-3582-2, https://www.cve.org/CVERecord?id=CVE-2015-8952

    Affected packages

    Package

    Name: linux-aws

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1014.14

    Affected versions

    4.4.0-1002.2
    4.4.0-1003.3
    4.4.0-1005.5
    4.4.0-1006.6
    4.4.0-1009.9
    4.4.0-1010.10
    4.4.0-1011.11
    4.4.0-1012.12

    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-2015-8952 | CVE-DB