UBUNTU-CVE-2014-1438

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    UBUNTU-CVE-2014-1438

    Published: 18 Jan 2014Last Modified: 4 Feb 2026
    Upstream:
    CVE-2014-1438
    Aliases:
    USN-2113-1
    USN-2117-1
    USN-2133-1

    Summary:

    Details: The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

    References: https://ubuntu.com/security/CVE-2014-1438, http://www.openwall.com/lists/oss-security/2014/01/14/1, http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/, https://lkml.org/lkml/2014/1/9/637, https://ubuntu.com/security/notices/USN-2113-1, https://ubuntu.com/security/notices/USN-2117-1, https://ubuntu.com/security/notices/USN-2133-1, https://ubuntu.com/security/notices/USN-2134-1, https://ubuntu.com/security/notices/USN-2135-1, https://ubuntu.com/security/notices/USN-2136-1, https://ubuntu.com/security/notices/USN-2138-1, https://ubuntu.com/security/notices/USN-2139-1, https://ubuntu.com/security/notices/USN-2141-1, https://ubuntu.com/security/notices/USN-2233-1, https://ubuntu.com/security/notices/USN-2234-1, https://www.cve.org/CVERecord?id=CVE-2014-1438

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-4.19

    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