What’s Vulnerable › Vulnerabilities

CVE-2004-0565

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2004-12-06 · updated 2026-06-16

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.

Affected products

• gentoo Linux: all versions
• Linux kernel: 2.4.0
• Mandrakesoft Mandrake Linux: 9.1, 9.2, 10.0
• Mandrakesoft Mandrake Linux Corporate Server: 2.1
• Mandrakesoft Mandrake Multi Network Firewall: 8.2
• Trustix Secure Linux: 2, 2.0, 2.1

References

• http://archives.neohapsis.com/archives/linux/owl/2004-q2/0038.html
• http://secunia.com/advisories/20162
• http://secunia.com/advisories/20163
• http://secunia.com/advisories/20202
• http://secunia.com/advisories/20338
• http://www.debian.org/security/2006/dsa-1067
• http://www.debian.org/security/2006/dsa-1069
• http://www.debian.org/security/2006/dsa-1070
• http://www.debian.org/security/2006/dsa-1082
• http://www.mandriva.com/security/advisories?name=MDKSA-2004:066
• http://www.redhat.com/support/errata/RHSA-2004-504.html
• http://www.securityfocus.com/bid/10687

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