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OpenBSD IPv6 Type 0 Route Headers Denial of Service
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Secunia Advisory:
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SA24978
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Release Date:
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2007-04-24
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Last Update:
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2007-04-30
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Popularity:
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8,137 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | OpenBSD 3.x
OpenBSD 4.0
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Subscribe:
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| CVE reference: | CVE-2007-2242
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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
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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