Bug 1548149 (CVE-2018-7287)

Summary:	CVE-2018-7287 asterisk: Denial of Service (DoS) in WebSocket frames with 0 sized payload
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 15.2.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:41:01 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:	1548150, 1548151
Bug Blocks:

Description Laura Pardo 2018-02-22 20:47:49 UTC

A flaw was discovered in Asterisk 15.x. When reading a websocket, the length was not being checked. If a payload of length 0 was read, it would result in a busy loop that waited for the underlying connection to close.


References:
http://downloads.asterisk.org/pub/security/AST-2018-006.html
https://issues.asterisk.org/jira/browse/ASTERISK-27658

Patch:
http://downloads.asterisk.org/pub/security/AST-2018-006-15.diff

Comment 1 Laura Pardo 2018-02-22 20:48:22 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1548151]
Affects: fedora-all [bug 1548150]

Comment 2 Product Security DevOps Team 2019-06-08 03:41:01 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.