CVE-2004-0565 Information disclosure in n/a

Low 2.1 Published 8 Jul 2004 Updated 8 Aug 2024

Local attackers can read floating-point register values from other processes due to missing FPH owner verification in Linux kernel context switching.

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-2004-0565?

CVE-2004-0565 is a low-severity vulnerability in Gentoo Linux, published on 8 Jul 2004. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Floating point information leak in the context switch code for Linux 2.4.x only checks the MFH bit but does not verify the FPH owner, which allows local users to read register values of other processes by setting the MFH bit.

Which versions are affected by CVE-2004-0565?

It affects 6 products.

Products include Gentoo Linux, Linux kernel, Mandrakesoft Mandrake Linux, Mandrakesoft Mandrake Linux Corporate Server, Mandrakesoft Mandrake Multi Network Firewall, Trustix Secure Linux.

How do I fix CVE-2004-0565?

Apply the vendor's patch.

Is CVE-2004-0565 being exploited?

There is no known exploitation of CVE-2004-0565 in the wild and no public exploit code.

All Gentoo Linux vulnerabilities

Sources

Also known as GHSA-g33f-v4ch-cw4g.