CVE-2014-1438

    Dashboard / Vulnerabilities / CVE-2014-1438

    CVE-2014-1438

    Published: 18 Jan 2014Last Modified: 16 Apr 2026

    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: http://www.mandriva.com/security/advisories?name=MDVSA-2014:038, http://www.ubuntu.com/usn/USN-2113-1, http://www.ubuntu.com/usn/USN-2117-1, http://www.ubuntu.com/usn/USN-2133-1, http://www.ubuntu.com/usn/USN-2134-1, http://www.ubuntu.com/usn/USN-2135-1, http://www.ubuntu.com/usn/USN-2136-1, http://www.ubuntu.com/usn/USN-2138-1, http://www.ubuntu.com/usn/USN-2139-1, http://www.ubuntu.com/usn/USN-2141-1, https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0, https://bugzilla.redhat.com/show_bug.cgi?id=1052914, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=26bef1318adc1b3a530ecc807ef99346db2aa8b0, http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html, http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html, http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8, http://www.openwall.com/lists/oss-security/2014/01/14/1, http://www.securityfocus.com/bid/64781, http://www.securitytracker.com/id/1029592, https://lkml.org/lkml/2014/1/9/637

    Affected packages

    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