CVE-2003-0857: Red Hat Enterprise Linux

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

The (1) ipq_read and (2) ipulog_read functions in iptables allow local users to cause a denial of service by sending spoofed messages as other users to the kernel netlink interface.

Affected products

• Red Hat Enterprise Linux: version 2.1 only; version 3.0 only

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