Rule

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Sid
21669

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in asterisk.

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Impact:
Denial of Service. Information disclosure. Loss of integrity. Complete admin access.

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Detailed Information:
Unspecified vulnerability in the SIP channel driver (channels/chan_sip.c) in Asterisk 1.2.x before 1.2.13 and 1.4.x before 1.4.0-beta3 allows remote attackers to cause a denial of service (resource consumption) via unspecified vectors that result in the creation of "a real pvt structure" that uses more resources than necessary.

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Affected Systems:
digium asterisk 1.2.0 beta1
digium asterisk 1.2.0 beta2
digium asterisk 1.2.10
digium asterisk 1.2.11
digium asterisk 1.2.12
digium asterisk 1.2.12.1
digium asterisk 1.2.6
digium asterisk 1.2.7
digium asterisk 1.2.8
digium asterisk 1.2.9
digium asterisk 1.4.0
digium asterisk 1.4.0 beta1
digium asterisk 1.4.0 beta2

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Attack Scenarios:


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Ease of Attack:
Medium.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

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Additional References:

NIST CVE-2006-5445:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-5445
  
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