Bug 561332 (CVE-2010-0441)

Summary:	CVE-2010-0441 Asterisk: Remote DoS via specially-crafted FaxMaxDatagram SDP packets (AST-2010-001)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	amessina, jeff, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://downloads.asterisk.org/pub/security/AST-2010-001.pdf
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-05-16 21:27:56 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	566829
Bug Blocks:

Description Jan Lieskovsky 2010-02-03 13:07:27 UTC

Remotely exploitable denial of service (crash) has been reported
and corrected in Asterisk. From the upstream advisory (AST-2010-0001):

"An attacker attempting to negotiate T.38 over SIP can remotely crash
Asterisk by modifying the FaxMaxDatagram field of the SDP to contain
either a negative or exceptionally large value. The same crash occurs
when the FaxMaxDatagram field is omitted from the SDP as well."

Upstream advisory:
  http://downloads.asterisk.org/pub/security/AST-2010-001.pdf

Patches:
  http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.0.diff (v1.6.0)  
  http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.1.diff (v1.6.1)
  http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.2.diff (v1.6.2)

Credit / Reported by:
  issues.asterisk.org users bklang and elsto

Comment 1 Jan Lieskovsky 2010-02-03 13:11:01 UTC

This issue affects latest versions of the asterisk package, as shipped
within Fedora release of 11 (asterisk-1.6.1.12-1.fc11) and 
12 (asterisk-1.6.1.12-1.fc12). 

Please fix.

Comment 3 Jeffrey C. Ollie 2010-03-01 15:26:26 UTC

https://bugzilla.redhat.com/show_bug.cgi?id=561332 and
https://bugzilla.redhat.com/show_bug.cgi?id=566829 appear to be duplicates.

Comment 4 Fedora Update System 2010-03-01 15:30:12 UTC

asterisk-1.6.2.5-1.fc13 has been submitted as an update for Fedora 13.
http://admin.fedoraproject.org/updates/asterisk-1.6.2.5-1.fc13

Comment 5 Fedora Update System 2010-03-01 15:50:07 UTC

asterisk-1.6.1.17-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/asterisk-1.6.1.17-1.fc12

Comment 6 Jeffrey C. Ollie 2010-03-02 18:43:45 UTC

*** Bug 566829 has been marked as a duplicate of this bug. ***

Comment 7 Fedora Update System 2010-03-02 18:45:02 UTC

asterisk-1.6.1.17-1.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/asterisk-1.6.1.17-1.fc11

Comment 8 Fedora Update System 2010-03-23 01:56:40 UTC

asterisk-1.6.1.17-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2010-04-01 01:38:43 UTC

asterisk-1.6.1.17-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.