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TITLE:
Asterisk SIP Response Code Denial of Service

SECUNIA ADVISORY ID:
SA24579

VERIFY ADVISORY:
http://secunia.com/advisories/24579/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Asterisk 1.x
http://secunia.com/product/2155/

DESCRIPTION:
qwerty1979 has reported a vulnerability in Asterisk, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the processing of SIP
replies from a remote system and can be exploited to crash the
service via the remote system sending a SIP reply containing SIP
Response code 0.

The vulnerability is reported to affect only the 1.4.x branch.

SOLUTION:
Update to version 1.4.2.

PROVIDED AND/OR DISCOVERED BY:
qwerty1979

ORIGINAL ADVISORY:
http://www.sineapps.com/news.php?rssid=1707
http://bugs.digium.com/view.php?id=9313

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About:
This Advisory was delivered by Secunia as a free service to help
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Please Note:
Secunia recommends that you verify all advisories you receive by
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use those supplied by the vendor.

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