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Asterisk SIP Response Code Denial of Service
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Secunia Advisory:
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SA24579
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Release Date:
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2007-03-22
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Last Update:
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2007-04-25
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Popularity:
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10,853 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 remote
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Solution Status:
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Vendor Patch
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| Software: | Asterisk 1.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2007-1594
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Description:
qwerty1979 has reported some vulnerabilities in Asterisk, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerabilities are caused due to certain errors in the chan_sip driver when processing SIP replies from a remote system and can be exploited to crash the service via the remote system sending a SIP reply containing an invalid SIP response code in the first line of the UDP packet.
The vulnerabilities are reported in the 1.2.x branch before 1.2.18 and the 1.4.x branch before 1.4.3.
Solution:
Update to version 1.4.3.
Provided and/or discovered by:
qwerty1979
Changelog:
2007-04-02: Added CVE reference.
2007-04-25: Updated "Description" and "Solution" sections with new information from the vendor. Added link to vendor advisory.
Original Advisory:
http://www.sineapps.com/news.php?rssid=1707
http://bugs.digium.com/view.php?id=9313
http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053967.html
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About this Secunia Advisory
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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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