Bug 1632477 (CVE-2018-17281)

Summary:	CVE-2018-17281 asterisk: Remote crash vulnerability in HTTP websocket upgrade
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bennie.joubert, itamar, jsmith.fedora, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:38:32 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1632478, 1632479
Bug Blocks:

Description Pedro Sampaio 2018-09-24 21:11:28 UTC

There is a stack overflow vulnerability in the res_http_websocket.so module of Asterisk that allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket. The attacker’s request causes Asterisk to run out of stack space and crash.

References:

https://issues.asterisk.org/jira/browse/ASTERISK-28013
http://downloads.asterisk.org/pub/security/AST-2018-009-13.diff
http://downloads.asterisk.org/pub/security/AST-2018-009-14.diff
http://downloads.asterisk.org/pub/security/AST-2018-009-15.diff
http://downloads.asterisk.org/pub/security/AST-2018-009-13.21.diff

Comment 1 Pedro Sampaio 2018-09-24 21:11:57 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1632479]
Affects: fedora-all [bug 1632478]

Comment 2 Product Security DevOps Team 2019-06-10 10:38:32 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.