[SA23660] Avahi "consume_labels()" Denial of Service Vulnerability

[Secunia Security Advisories <[EMAIL PROTECTED]>]

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TITLE:
Avahi "consume_labels()" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA23660

VERIFY ADVISORY:
http://secunia.com/advisories/23660/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
Avahi 0.x
http://secunia.com/product/9784/

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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