security flaw
Published Jul 8, 2004
2.1
LOWCVSS 2.0
EPSS 0.44%
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
No data.
Configuration 1
- 8.2
Configuration 2
- n/a
- 2.4.0
- 9.1
- 9.2
- 10.0
- 2.1
- 2
- 2.0
- 2.1
No data.
Red Hat Enterprise Linux 3
kernel-0:2.4.21-27.0.1.EL
Fixed · RHSA-2004:689
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2004:504
Red Hat Linux Advanced Workstation 2.1
n/a
Fixed · RHSA-2004:504
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | kernel-0:2.4.21-27.0.1.EL | Fixed | RHSA-2004:689 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2004:504 |
| Red Hat Linux Advanced Workstation 2.1 | n/a | Fixed | RHSA-2004:504 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.44% (0.00444) | 36.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00444) | 35.13th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00064) | 17.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
No CWE recorded.
References (19)
- http://archives.neohapsis.com/archives/linux/owl/2004-q2/0038.html mailing-listx_refsource_MLISTVendor Advisory
- http://secunia.com/advisories/20162 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20163 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20202 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20338 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2006/dsa-1067 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1069 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1070 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1082 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2004:066 vendor-advisoryx_refsource_MANDRAKE
- http://www.redhat.com/support/errata/RHSA-2004-504.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/10687 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2004-0565 Vendor Advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124734 x_refsource_MISCVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617231 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16644 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2004-0565
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10714 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2004-0565
Change history (0)
No recorded changes yet.