OpenBSD pf ip shard Denial of Service Vulnerability

Source: Internet
Author: User

Source: Zoomlion

Released on: 2006-01-27
Updated on: 2006-01-27

Affected Systems:
FreeBSD 5.4
FreeBSD 5.3
OpenBSD current
OpenBSD 3.8
OpenBSD 3.7
Bugtraq id: 16375
CVE (CAN) ID: CVE-2006-0381

OpenBSD is an open-source Unix operating system.

A remote attacker can exploit this vulnerability to initiate a Denial-of-Service attack on the server.

Remote attackers may cause kernel crash through specially crafted malicious fragmented packets.

<* Source: Jakob Schlyter
Daniel Hartmeier


Vendor patch:

FreeBSD has released a Security Bulletin (FreeBSD-SA-06: 07) and patches for this:
FreeBSD-SA-06: 07: IP fragment handling panic in pf (4)

Patch download:

# Fetch
# Fetch

The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage:

Http:// R1 = 1.103 & r2 = 1.104


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