Bug 521164 (CVE-2009-2346)

Summary: CVE-2009-2346 asterisk: IAX2 DoS vulnerability (AST-2009-006)
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jeff, jlieskov
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2346
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-10-27 18:21:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 521165    
Bug Blocks:    

Description Vincent Danen 2009-09-04 00:22:53 UTC
The Asterisk development team has released new versions of Asterisk for 1.2.x, 1.4.x, 1.6.0.x and 1.6.1.x that correct an IAX2 denial of service vulnerability.  The security advisory (AST-2009-006) [1] indicates that and correct the vulnerability.

This vulnerability affects all versions of Asterisk prior to 1.2.35,,, adn  Package updates for Fedora are required; apparently this changes the IAX2 protocol as well so I'm not sure if a backport is feasible.

[1] http://downloads.asterisk.org/pub/security/AST-2009-006.html

Comment 2 Jan Lieskovsky 2009-09-09 14:17:41 UTC
MITRE's CVE-2009-2346 record:

The IAX2 protocol implementation in Asterisk Open Source 1.2.x before
1.2.35, 1.4.x before, 1.6.0.x before, and 1.6.1.x
before; Business Edition B.x.x before B.2.5.10, C.2.x before
C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before
allows remote attackers to cause a denial of service (call-number
exhaustion) by initiating many IAX2 message exchanges, a related issue
to CVE-2008-3263.


Comment 3 Fedora Update System 2009-09-25 20:04:52 UTC
asterisk- has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2009-09-25 20:09:42 UTC
asterisk- has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.