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Sid 1-21672

Message

PROTOCOL-VOIP Digium Asterisk SCCP capabilities response message capabilities count overflow attempt

Summary

The Skinny channel driver (chanskinny) in Asterisk Open Source before 1.4.10, AsteriskNOW before beta7, Appliance Developer Kit before 0.7.0, and Appliance s800i before 1.0.3 allows remote authenticated users to cause a denial of service (application crash) via a CAPABILITIESRESMESSAGE packet with a capabilities count larger than the capabilitiesres_message array population.

Impact

CVSS base score 3.5 CVSS impact score 2.9 CVSS exploitability score 6.8 confidentialityImpact NONE integrityImpact NONE availabilityImpact NONE

CVE-2007-4280:

CVSS base score 3.5

CVSS impact score 2.9

CVSS exploitability score 6.8

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Detailed information

CVE-2007-4280: The Skinny channel driver (chanskinny) in Asterisk Open Source before 1.4.10, AsteriskNOW before beta7, Appliance Developer Kit before 0.7.0, and Appliance s800i before 1.0.3 allows remote authenticated users to cause a denial of service (application crash) via a CAPABILITIESRESMESSAGE packet with a capabilities count larger than the capabilitiesres_message array population.

Affected systems

  • asterisk asterisk 1.4.9
  • asterisk asteriskappliancedeveloper_kit 0.6.0
  • asterisk asterisknow beta_6
  • asterisk s800i 1.0.2

Ease of attack

CVE-2007-4280:

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

  • Talos 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 nvd.

Additional References