CVE-2003-0986: Linux Kernel

Low severity, CVSS 1.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Various routines for the ppc64 architecture on Linux kernel 2.6 prior to 2.6.2 and 2.4 prior to 2.4.24 do not use the copy_from_user function when copying data from userspace to kernelspace, which crosses security boundaries and allows local users to cause a denial of service.

Affected products

• Linux Linux Kernel: version 2.4.0 only; version 2.4.18 only; version 2.4.19 only; version 2.4.21 only; version 2.4.22 only; version 2.4.23 only; …
• Red Hat Enterprise Linux: version 3.0 only

Published 2003-12-31. Last modified 2026-06-16.