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TI-2004-00508 Aliases CVE-2004-0565GHSA-g33f-v4ch-cw4g

Floating point information leak in the context switch code for Linux 2.4.x only checks…

Priority LOW 12Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · None · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.00444 38th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:mandrakesoft:mandrake_multi_network_firewall:8.2:*:*:*:*:*:*:*8.2VulnerableMandrakesoft
cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*all versionsVulnerablegentoo
cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*2.4.0VulnerableLinux
cpe:2.3:o:mandrakesoft:mandrake_linux:9.1:*:*:*:*:*:*:*9.1VulnerableMandrakesoft
cpe:2.3:o:mandrakesoft:mandrake_linux:9.2:*:*:*:*:*:*:*9.2VulnerableMandrakesoft
cpe:2.3:o:mandrakesoft:mandrake_linux:10.0:*:*:*:*:*:*:*10.0VulnerableMandrakesoft
cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server:2.1:*:*:*:*:*:*:*2.1VulnerableMandrakesoft
cpe:2.3:o:trustix:secure_linux:2:*:*:*:*:*:*:*2VulnerableTrustix
cpe:2.3:o:trustix:secure_linux:2.0:*:*:*:*:*:*:*2.0VulnerableTrustix
cpe:2.3:o:trustix:secure_linux:2.1:*:*:*:*:*:*:*2.1VulnerableTrustix
  • cpe:2.3:a:mandrakesoft:mandrake_multi_network_firewall:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Mandrakesoft
  • cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·gentoo
  • cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Linux
  • cpe:2.3:o:mandrakesoft:mandrake_linux:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·Mandrakesoft
  • cpe:2.3:o:mandrakesoft:mandrake_linux:9.2:*:*:*:*:*:*:* Versions 9.2 Vulnerable ·Mandrakesoft
  • cpe:2.3:o:mandrakesoft:mandrake_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Mandrakesoft
  • cpe:2.3:o:mandrakesoft:mandrake_linux_corporate_server:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Mandrakesoft
  • cpe:2.3:o:trustix:secure_linux:2:*:*:*:*:*:*:* Versions 2 Vulnerable ·Trustix
  • cpe:2.3:o:trustix:secure_linux:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Trustix
  • cpe:2.3:o:trustix:secure_linux:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Trustix

Remediation

Red Hat 2 advisories

  • RHSA-2004:689 Released 2004-12-23 · Red Hat rating Important
    kernel security update
    • Red Hat Desktop version 3 kernel-2.4.21-27.0.1.EL, kernel-2.4.21-27.0.1.EL.athlon, kernel-2.4.21-27.0.1.EL.ia32e +14
    • Red Hat Enterprise Linux AS version 3 kernel-2.4.21-27.0.1.EL, kernel-2.4.21-27.0.1.EL.athlon, kernel-2.4.21-27.0.1.EL.ia32e +22
    • Red Hat Enterprise Linux ES version 3 kernel-2.4.21-27.0.1.EL, kernel-2.4.21-27.0.1.EL.athlon, kernel-2.4.21-27.0.1.EL.ia32e +18
    • Red Hat Enterprise Linux WS version 3 kernel-2.4.21-27.0.1.EL, kernel-2.4.21-27.0.1.EL.athlon, kernel-2.4.21-27.0.1.EL.ia32e +18
  • RHSA-2004:504 Released 2004-12-13 · Red Hat rating Important
    Updated Itanium kernel packages resolve security issues
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Linux Advanced Workstation 2.1

Vendor assessments

Red Hat

Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2004:689
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2004:504
Red Hat Enterprise Linux AS version 3Fixed RHSA-2004:689
Red Hat Enterprise Linux ES version 3Fixed RHSA-2004:689
Red Hat Enterprise Linux WS version 3Fixed RHSA-2004:689
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2004:504

Timeline

  1. 2026-10-02 Threatist record created from CVE-2004-0565
  2. 2026-10-03 Alias added: GHSA-g33f-v4ch-cw4g

References

Advisory 8

Other 1

Sources

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