CVE-2007-3732

Name: CVE-2007-3732
Creator: NVD / NIST
Published: 2019-11-07T22:15:10.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.38%

Last modified Jun 16, 2026

CVE-2007-3732 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.38%

29.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 2.6.0, < 2.6.23

References

https://access.redhat.com/security/cve/cve-2007-3732Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732Issue Tracking, Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2007-3732Third Party Advisory
https://access.redhat.com/security/cve/cve-2007-3732Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732Issue Tracking, Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2007-3732Third Party Advisory

Timeline

Published: Nov 7, 2019
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-3732?

How severe is CVE-2007-3732?

CVE-2007-3732 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2007-3732?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-3732?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST