Bug 815774 (CVE-2012-2416)

Summary: CVE-2012-2416 asterisk: Crash by processing certain UPDATE requests in SIP channel driver (AST-2012-006)
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: itamar, jeff, lmadsen, rbryant
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=low,public=20120423,reported=20120423,source=oss-security,cvss2=2.1/AV:N/AC:H/Au:S/C:N/I:N/A:P,fedora-all/asterisk=affected,epel-6/asterisk=affected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 815777, 815778    
Bug Blocks:    

Description Jan Lieskovsky 2012-04-24 09:41:15 EDT
A denial of service (asterisk crash) was found in the way Session Initiation Protocol (SIP) channel implementation (SIP driver) of the Asterisk, an open-source telephony toolkit processed certain SIP UPDATE requests, when the 'trustrpid' option was enabled. A remote attacker, able to properly time the SIP update request arrival, [it to come within (after call was terminated and associated channel object has been destroyed,  but before SIP dialog associated with the call has been destroyed) interval] could use this flaw to cause asterisk executable crash.

Upstream advisory:
http://downloads.asterisk.org/pub/security/AST-2012-006.html

Upstream patch (against the v1.8 branch):
http://downloads.asterisk.org/pub/security/AST-2012-006-1.8.diff

Upstream patch (against the v1.10 branch):
http://downloads.asterisk.org/pub/security/AST-2012-006-1.8.diff

Upstream ticket:
https://issues.asterisk.org/jira/browse/ASTERISK-19770

CVE assignment:
http://www.openwall.com/lists/oss-security/2012/04/23/5
Comment 1 Jan Lieskovsky 2012-04-24 09:43:26 EDT
This issue affects the versions of the asterisk package, as shipped with Fedora release of 15 and 16. Please schedule an update.

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This issue affects the version of the asterisk package, as shipped with Fedora EPEL 6. Please schedule an update.
Comment 2 Jan Lieskovsky 2012-04-24 09:46:13 EDT
Created asterisk tracking bugs for this issue

Affects: fedora-all [bug 815777]
Affects: epel-6 [bug 815778]
Comment 3 Fedora Update System 2012-05-03 18:53:35 EDT
asterisk-1.8.11.1-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2012-05-04 16:29:39 EDT
asterisk-1.8.11.1-1.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2012-05-04 18:51:54 EDT
asterisk-10.3.1-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2012-05-11 18:02:43 EDT
asterisk-1.8.11.1-1.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.