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Fencer Vulns
high 7.2

CVE-2007-5966 json

Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbit…

published 2007-12-20 18 y ago modified 2026-06-16 4 mo ago also EUVD-2007-5936

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third party information.

Patch / fix

  • kernel RHEL 5.3 EUS, RHEL 5 2.6.18-128.4.1.el5
  • kernel-PAE RHEL 5.3 EUS, RHEL 5 2.6.18-128.4.1.el5
  • kernel-xen RHEL 5.3 EUS, RHEL 5 2.6.18-128.4.1.el5
  • kernel-kdump RHEL 5.3 EUS, RHEL 5 2.6.18-128.4.1.el5
  • kernel-debuginfo-common RHEL 5.3 EUS, RHEL 5 2.6.18-128.4.1.el5
  • kernel-rt enterprise mrg 1 2.6.24.7-74.el5rt
  • kernel-rt-trace enterprise mrg 1 2.6.24.7-74.el5rt
  • kernel-rt-vanilla enterprise mrg 1 2.6.24.7-74.el5rt

red hat advisories RHSA-2009:1193RHSA-2010:0079RHSA-2008:0585

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-5966 updated cvss 7.2

kernel: non-root can trigger cpu_idle soft lockup

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-74.el5rt, kernel-rt-trace 2.6.24.7-74.el5rt, kernel-rt-vanilla 2.6.24.7-74.el5rt, kernel-rt-debuginfo-common 2.6.24.7-74.el5rt
    fixed: vendor fix RHSA-2008:0585
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-128.4.1.el5, kernel-PAE 2.6.18-128.4.1.el5, kernel-xen 2.6.18-128.4.1.el5, kernel-kdump 2.6.18-128.4.1.el5, kernel-debuginfo-common 2.6.18-128.4.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-128.4.1.el5, kernel-PAE 2.6.18-128.4.1.el5, kernel-xen 2.6.18-128.4.1.el5, kernel-debuginfo-common 2.6.18-128.4.1.el5
    fixed: vendor fix RHSA-2009:1193
  • Red Hat Enterprise Linux EUS (v. 5.2 server) kernel 2.6.18-92.1.35.el5, kernel-PAE 2.6.18-92.1.35.el5, kernel-xen 2.6.18-92.1.35.el5, kernel-kdump 2.6.18-92.1.35.el5, kernel-debuginfo-common 2.6.18-92.1.35.el5
    fixed: vendor fix RHSA-2010:0079
  • Red Hat Enterprise Linux EUS (v. 5.3 server) kernel 2.6.18-128.4.1.el5, kernel-PAE 2.6.18-128.4.1.el5, kernel-xen 2.6.18-128.4.1.el5, kernel-kdump 2.6.18-128.4.1.el5, kernel-debuginfo-common 2.6.18-128.4.1.el5
    fixed: vendor fix RHSA-2009:1193
  • Red Hat Enterprise Linux EUS (v. 5.2 server) kernel-headers 2.6.18-92.1.35.el5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.