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>> Asterisk SIP Channel Driver Response Handling Remote Denial of Service Vulnerability

Title : Asterisk SIP Channel Driver Response Handling Remote Denial of Service Vulnerability
VUPEN ID : VUPEN/ADV-2007-1077
CVE ID : CVE-2007-1594 - CVE-2007-2297
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-03-22


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Asterisk, which could be exploited by remote attackers to cause a denial of service. This issue is due to an error in the SIP channel driver that fails to properly handle certain SIP responses (code 0), which could be exploited by remote attackers to crash an affected application, creating a denial of service condition.

Affected Products

Asterisk version 1.4.1 and prior

Solution

Upgrade to Asterisk 1.4.2 :
http://www.asterisk.org/downloads

References

http://www.vupen.com/english/advisories/2007/1077
http://www.asterisk.org/node/48338
http://bugs.digium.com/view.php?id=9313

Credits

Vulnerability reported by qwerty1979

ChangeLog

2007-03-22 : Initial release

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