CVE-2003-0653: Netbsd

Medium severity, CVSS 5.0. EPSS: 1.3% chance of exploitation in the next 30 days.

The OSI networking kernel (sys/netiso) in NetBSD 1.6.1 and earlier does not use a BSD-required "PKTHDR" mbuf when sending certain error responses to the sender of an OSI packet, which allows remote attackers to cause a denial of service (kernel panic or crash) via certain OSI packets.

Affected products

• Netbsd Netbsd: version 1.5 only; version 1.5.1 only; version 1.5.2 only; version 1.5.3 only; version 1.6 only; version 1.6.1 only

Published 2003-08-27. Last modified 2026-06-16.