OpenBSD IPv6 Type 0 Route Headers Denial of Service - Advisories

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OpenBSD IPv6 Type 0 Route Headers Denial of Service

Secunia Advisory:	SA24978
Release Date:	2007-04-24
Last Update:	2007-04-30

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

OS:	OpenBSD 3.x OpenBSD 4.0


CVE reference:	CVE-2007-2242 (Secunia mirror)

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Description: A vulnerability has been reported in OpenBSD, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error within the processing of certain IPv6 type 0 route headers. This can be exploited to cause a DoS by sending specially crafted IPv6 packets to a vulnerable system. The vulnerability is reported in version 3.9 and 4.0. Other versions may also be affected. Solution: Apply patches. OpenBSD 3.9: ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/022_route6.patch OpenBSD 4.0: ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.0/common/012_route6.patch Provided and/or discovered by: Philippe Biondi and Arnaud Ebalard Changelog: 2007-04-27: Added CVE reference. 2007-04-30: Added link to original advisory and updated "Provided by" section. Original Advisory: OpenBSD: http://openbsd.org/errata40.html#012_route6 http://www.secdev.org/conf/IPv6_RH_security-csw07.pdf



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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