CVE-2014-1438 Privilege escalation in n/a

Medium 4.7 Published Updated

Local attackers can cause denial of service or gain privileges via a crafted application due to improper FPU exception handling on AMD K7/K8 platforms.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2014-1438?

CVE-2014-1438 is a medium-severity vulnerability in Linux kernel, published on 18 Jan 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-264

Which versions are affected by CVE-2014-1438?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2014-1438?

Apply the vendor's patch.

Is CVE-2014-1438 being exploited?

There is no known exploitation of CVE-2014-1438 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-1438, GHSA-xgvj-fh76-mj6g.

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