Bug 1548126 (CVE-2018-1000099)

Summary:	CVE-2018-1000099 asterisk: segmentation fault occurs in asterisk with an invalid SDP fmtp attribute
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bennie.joubert, itamar, jsmith.fedora, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 13.19.2, asterisk 14.7.6, asterisk 15.2.2, Certified Asterisk 13.18	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:40:56 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:	1548127, 1548128
Bug Blocks:

Description Laura Pardo 2018-02-22 19:40:16 UTC

A flaw was discovered in Asterisk 13.x, 14.x, 15.x and 13.18. By crafting an SDP message body with an invalid fmtp attribute Asterisk crashes when using the pjsip channel driver because pjproject's fmtp retrieval function fails to check if fmtp value is empty (set empty if previously parsed as invalid).


References:
http://downloads.asterisk.org/pub/security/AST-2018-003.html
https://issues.asterisk.org/jira/browse/ASTERISK-27583

Patches:
http://downloads.asterisk.org/pub/security/AST-2018-003-13.diff [Asterisk 13]
http://downloads.asterisk.org/pub/security/AST-2018-003-14.diff [Asterisk 14]
http://downloads.asterisk.org/pub/security/AST-2018-003-15.diff [Asterisk 15]
http://downloads.asterisk.org/pub/security/AST-2018-003-13.18.diff [Certified Asterisk 13.18]

Comment 1 Laura Pardo 2018-02-22 19:40:51 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1548128]
Affects: fedora-all [bug 1548127]

Comment 2 Product Security DevOps Team 2019-06-08 03:40:56 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.