CVE-2007-3732
Last modified
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/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
- Last Modified
- Status
- Modified
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