Bug 832625 (CVE-2012-3553)

Summary: CVE-2012-3553 asterisk: skinny channel driver remote crash vulnerability
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: itamar, jeff, lmadsen, rbryant
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2021-10-19 21:54:32 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 832626    
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Description Vincent Danen 2012-06-16 01:16:29 UTC
AST-2012-008 previously dealt with a denial of service attack exploitable in the Skinny channel driver that occurred when certain messages are sent after a previously registered station sends an Off Hook message. Unresolved in that patch is an issue in the Asterisk 10 releases, wherein, if a Station Key Pad Button Message is processed after an Off Hook message, the channel driver will inappropriately dereference a Null pointer.

Similar to AST-2012-008, a remote attacker with a valid SCCP ID can can use this vulnerability by closing a connection to the Asterisk server when a station is in the "Off Hook" call state and crash the server.

This only affects version 10, and is fixed in 10.5.1.

References:

http://downloads.digium.com/pub/security/AST-2012-009.html
https://issues.asterisk.org/jira/browse/ASTERISK-19905
http://downloads.asterisk.org/pub/security/AST-2012-009-10.diff

Comment 1 Vincent Danen 2012-06-16 01:18:05 UTC
Created asterisk tracking bugs for this issue

Affects: fedora-17 [bug 832626]

Comment 2 Fedora Update System 2012-06-26 00:39:00 UTC
asterisk-10.5.1-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.