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CVE-2008-3530

Status Candidate

Overview

sys/netinet6/icmp6.c in the kernel in FreeBSD 6.3 through 7.1, NetBSD 3.0 through 4.0, and possibly other operating systems does not properly check the proposed new MTU in an ICMPv6 Packet Too Big Message, which allows remote attackers to cause a denial of service (panic) via a crafted Packet Too Big Message.

Related Files

FreeBSD-SA-08-09.icmp6.txt
Posted Sep 4, 2008
Site security.freebsd.org

FreeBSD Security Advisory - In case of an incoming ICMPv6 'Packet Too Big Message', there is an insufficient check on the proposed new MTU for a path to the destination. When the kernel is configured to process IPv6 packets and has active IPv6 TCP sockets, a specifically crafted ICMPv6 'Packet Too Big Message' could cause the TCP stack of the kernel to panic.

tags | advisory, kernel, tcp
systems | freebsd
advisories | CVE-2008-3530
SHA-256 | 8d935b0a4c11d0b8d9e04f2031c6eabb363df15b37837728e7cfbdcb0d15d3ac
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