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Vulnerability Details : CVE-2014-1438

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.
Publish Date : 2014-01-18 Last Update Date : 2014-03-16
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- CVSS Scores & Vulnerability Types

CVSS Score
4.7
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceGain privileges
CWE ID 264

- Products Affected By CVE-2014-1438

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 3.12 Version Details Vulnerabilities
2 OS Linux Linux Kernel 3.12.1 Version Details Vulnerabilities
3 OS Linux Linux Kernel 3.12.2 Version Details Vulnerabilities
4 OS Linux Linux Kernel 3.12.3 Version Details Vulnerabilities
5 OS Linux Linux Kernel 3.12.4 Version Details Vulnerabilities
6 OS Linux Linux Kernel 3.12.5 Version Details Vulnerabilities
7 OS Linux Linux Kernel 3.12.6 Version Details Vulnerabilities
8 OS Linux Linux Kernel 3.12.7 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 8

- References For CVE-2014-1438

http://www.securityfocus.com/bid/64781
BID 64781 Linux Kernel 'fpu-internal.h' Local Denial of Service Vulnerability Release Date:2014-03-10
http://www.openwall.com/lists/oss-security/2014/01/14/1
MLIST [oss-security] 20140114 Re: Linux kernel: missing CPU-state sanitation during task-switch causes DOS / privilege escalation
http://www.mandriva.com/security/advisories?name=MDVSA-2014:038
MANDRIVA MDVSA-2014:038
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8 CONFIRM
http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/
http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html
FEDORA FEDORA-2014-1062
http://www.ubuntu.com/usn/USN-2113-1
UBUNTU USN-2113-1
http://www.securitytracker.com/id/1029592
SECTRACK 1029592
http://www.ubuntu.com/usn/USN-2117-1
UBUNTU USN-2117-1
http://www.ubuntu.com/usn/USN-2133-1
UBUNTU USN-2133-1
http://www.ubuntu.com/usn/USN-2134-1
UBUNTU USN-2134-1
http://www.ubuntu.com/usn/USN-2135-1
UBUNTU USN-2135-1
http://www.ubuntu.com/usn/USN-2136-1
UBUNTU USN-2136-1
http://www.ubuntu.com/usn/USN-2138-1
UBUNTU USN-2138-1
https://bugzilla.redhat.com/show_bug.cgi?id=1052914 CONFIRM
http://www.ubuntu.com/usn/USN-2139-1
UBUNTU USN-2139-1
http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html
FEDORA FEDORA-2014-1072
http://www.ubuntu.com/usn/USN-2141-1
UBUNTU USN-2141-1
https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=26bef1318adc1b3a530ecc807ef99346db2aa8b0 CONFIRM
https://lkml.org/lkml/2014/1/9/637
MLIST [linux-kernel] 20140110 Re: Sanitize CPU-state when switching tasks (was sanitize CPU-state when switching from virtual-8086 mode to other task)

- Metasploit Modules Related To CVE-2014-1438

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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