CVE-2007-3732

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.15%

Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory debian.org

Affected: linux-2.6 linux-2.6

References

Link	Tags
https://security-tracker.debian.org/tracker/CVE-2007-3732	third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732	issue tracking third party advisory patch
https://access.redhat.com/security/cve/cve-2007-3732	third party advisory

Frequently Asked Questions

What is the severity of CVE-2007-3732?: CVE-2007-3732 has been scored as a medium severity vulnerability.
How to fix CVE-2007-3732?: To fix CVE-2007-3732, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-3732 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2007-3732 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2007-3732?: CVE-2007-3732 affects linux-2.6 linux-2.6.

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