CVE-2007-0771: Linux Kernel

Medium severity, CVSS 4.9. EPSS: 0.4% chance of exploitation in the next 30 days.

The utrace support in Linux kernel 2.6.18, and other versions, allows local users to cause a denial of service (system hang) related to "MT exec + utrace_attach spin failure mode," as demonstrated by ptrace-thrash.c.

Affected products

• Linux Linux Kernel: version 2.6.18 only; version 2.6.18.1 only; version 2.6.18.2 only; version 2.6.18.3 only; version 2.6.18.4 only
• Red Hat Enterprise Linux: version 5.0 only

Published 2007-05-02. Last modified 2026-06-16.