Bug 1043918 (CVE-2013-7100)

Summary:	CVE-2013-7100 asterisk: buffer overflow when receiving odd length 16 bit SMS message
Product:	[Other] Security Response	Reporter:	Ratul Gupta <ratulg>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	itamar, jeff, jrusnack, lmadsen, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 1.8.24.1, asterisk 11.6.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-09-05 19:05:39 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:	1043921, 1043923
Bug Blocks:

Description Ratul Gupta 2013-12-17 12:54:01 UTC

Asterisk was found to have a vulnerability, where a 16 bit SMS message that contains an odd message length value will cause the message decoding loop to run forever. The message buffer is not on the stack but will be overflowed resulting in corrupted memory and an immediate crash.

The issue is said to be fixed in Asterisk 1.8.24.1 and 11.6.1.

References:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732355
http://downloads.asterisk.org/pub/security/AST-2013-006.html

Patch:
1.8: http://downloads.asterisk.org/pub/security/AST-2013-006-1.8.diff
11: http://downloads.asterisk.org/pub/security/AST-2013-006-11.diff

Comment 1 Ratul Gupta 2013-12-17 12:56:44 UTC

Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1043921]
Affects: epel-6 [bug 1043923]

Comment 2 Fedora Update System 2014-01-08 07:50:42 UTC

asterisk-11.7.0-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2014-01-08 07:55:03 UTC

asterisk-11.7.0-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2014-01-08 07:59:17 UTC

asterisk-11.7.0-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.