Bug 891646 (CVE-2012-5976)

Summary:	CVE-2012-5976 asterisk: Crashes due to large stack allocations when using TCP (AST-2012-014)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	itamar, jeff, lmadsen, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-01-30 07:40:31 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:	891650, 891651
Bug Blocks:

Description Jan Lieskovsky 2013-01-03 14:19:33 UTC

Multiple stack-based buffer overflow flaws were found in the way Asterisk, the open-source PBX software, processed certain SIP, HTTP and XMPP protocol-based network messages. A remote attacker could use this flaw to cause asterisk executable to crash via specially-crafted SIP, HTTP or XMPP protocol messages.

References:
[1] http://downloads.asterisk.org/pub/security/AST-2012-014.html

Upstream patches:
[2] http://downloads.asterisk.org/pub/security/AST-2012-014-1.8.11.diff
[3] http://downloads.asterisk.org/pub/security/AST-2012-014-1.8.diff
[4] http://downloads.asterisk.org/pub/security/AST-2012-014-10.diff
[5] http://downloads.asterisk.org/pub/security/AST-2012-014-11.diff
[6] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697230

Comment 1 Jan Lieskovsky 2013-01-03 14:31:39 UTC

This issue affects the versions of the asterisk package, as shipped with Fedora release of 16 and 17. Please schedule an update.

--

This issue affects the version of the asterisk package, as shipped with Fedora EPEL 6. Please schedule an update.

Comment 2 Jan Lieskovsky 2013-01-03 14:33:23 UTC

Created asterisk tracking bugs for this issue

Affects: fedora-all [bug 891650]
Affects: epel-6 [bug 891651]

Comment 3 Fedora Update System 2013-01-30 00:32:47 UTC

asterisk-11.2.0-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2013-01-30 00:36:30 UTC

asterisk-10.12.0-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2013-01-30 00:55:09 UTC

asterisk-1.8.20.0-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.