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Avahi "consume_labels()" Denial of Service Vulnerability
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Secunia Advisory:
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SA23660
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Release Date:
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2007-01-08
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Popularity:
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5,220 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | Avahi 0.x
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| CVE reference: | CVE-2006-6870
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Description:
A vulnerability has been reported in Avahi, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the "consume_labels()" function in avahi-core/dns.c when handling compressed packets. This can be exploited to cause an endless loop by sending specially crafted packets with compression labels that refer each other.
The vulnerability is reported in versions prior to Avahi 0.6.16.
Solution:
Update to version 0.6.16.
Provided and/or discovered by:
Reported by the vendor.
Original Advisory:
http://www.avahi.org/ticket/84
http://www.avahi.org/#December2006
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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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