Bug 1304670 (CVE-2016-2316)

Summary:	CVE-2016-2316 asterisk: File descriptor exhaustion in chan_sip (AST-2016-002)
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED RAWHIDE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bazanluis20, itamar, jsmith.fedora, lmadsen, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 11.21.1, asterisk 13.7.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-12 15:15:56 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:	1304671, 1304672
Bug Blocks:

Description Adam Mariš 2016-02-04 10:19:51 UTC

It was reported that setting the sip.conf timert1 value to a value higher than 1245 can cause an integer overflow and result in large retransmit timeout times. These large timeout values hold system file descriptors hostage and can cause the system to run out of file descriptors.

External Reference:

http://downloads.asterisk.org/pub/security/AST-2016-002.html
http://seclists.org/bugtraq/2016/Feb/28

Comment 1 Adam Mariš 2016-02-04 10:20:35 UTC

Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1304671]
Affects: epel-6 [bug 1304672]

Comment 2 Jared Smith 2016-02-04 18:00:26 UTC

I've updated Rawhide to upstream release 13.7.1, which corrects this issue (as well as two other reported security issues).

Once the build finishes in Rawhide, I'll push to f23 and f22 for testing as well.

Comment 3 Andrej Nemec 2016-02-16 08:16:02 UTC

CVE assignment information from upstream:

http://downloads.asterisk.org/pub/security/AST-2016-002.html

Comment 4 Fedora Update System 2016-02-17 12:50:59 UTC

asterisk-13.7.1-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-02-17 14:21:10 UTC

asterisk-13.7.1-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.