UBUNTU-CVE-2016-0821

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    UBUNTU-CVE-2016-0821

    Published: 12 Mar 2016Last Modified: 26 Aug 2026
    Upstream:
    CVE-2016-0821
    Aliases:
    USN-2967-1
    USN-2967-2
    USN-2968-1

    Summary:

    Details: The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.

    References: https://ubuntu.com/security/CVE-2016-0821, http://www.openwall.com/lists/oss-security/2015/05/02/6, http://source.android.com/security/bulletin/2016-03-01.html, https://ubuntu.com/security/notices/USN-2971-2, https://ubuntu.com/security/notices/USN-2971-3, https://ubuntu.com/security/notices/USN-2971-1, https://ubuntu.com/security/notices/USN-2970-1, https://ubuntu.com/security/notices/USN-2969-1, https://ubuntu.com/security/notices/USN-2967-2, https://ubuntu.com/security/notices/USN-2967-1, https://ubuntu.com/security/notices/USN-2968-1, https://ubuntu.com/security/notices/USN-2968-2, https://www.cve.org/CVERecord?id=CVE-2016-0821

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-86.130

    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