Vulnerability in Linux Kernel
CVE-2007-3732
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel
- Linux-2.6 — versions 2.6 before 2.6.23
References
- security-tracker.debian.org/tracker/CVE-2007-3732 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/cve-2007-3732 (Third Party Advisory)
Frequently asked questions
- What is CVE-2007-3732?
- CVE-2007-3732 is a medium-severity vulnerability in Linux Kernel. CVSS score: 5.5/10. Published 2019-11-07.
- How severe is CVE-2007-3732?
- Medium severity. CVSS v3 base score is 5.5 out of 10.