Bug 1493495 (CVE-2017-14603)

Summary:	CVE-2017-14603 asterisk: RTP/RTCP information leak
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	itamar, jsmith.fedora, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 11.25.3, asterisk 13.17.2, asterisk 14.6.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:25:49 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:	1493496
Bug Blocks:

Description Andrej Nemec 2017-09-20 11:01:08 UTC

This is a follow up advisory to AST-2017-005.

Insufficient RTCP packet validation could allow reading stale buffer contents and 
when combined with the “nat” and “symmetric_rtp” options allow redirecting 
where Asterisk sends the next RTCP report.

The RTP stream qualification to learn the source address of media always 
accepted the first RTP packet as the new source and allowed what AST-2017-005 
was mitigating.  The intent was to qualify a series of packets before accepting the 
new source address.

External References:

http://downloads.asterisk.org/pub/security/AST-2017-008.html

Upstream issues:

https://issues.asterisk.org/jira/browse/ASTERISK-27274
https://issues.asterisk.org/jira/browse/ASTERISK-27252

Comment 1 Andrej Nemec 2017-09-20 11:01:29 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1493496]
Affects: fedora-all [bug 1493497]

Comment 2 Product Security DevOps Team 2019-06-08 03:25:49 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.