Bug 1439099 (CVE-2017-7617)

Summary:	CVE-2017-7617 asterisk: Buffer overflow in CDR's set user
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	g.devel, itamar, jsmith.fedora, rbryant
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 13.14.1, asterisk 14.3.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:09:57 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:	1439102, 1439103
Bug Blocks:

Description Andrej Nemec 2017-04-05 08:43:27 UTC

No size checking is done when setting the user field on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. This allows the possibility of remote code injection.

External References:

http://downloads.asterisk.org/pub/security/AST-2017-001.html

Upstream patches:

[Asterisk 13] http://downloads.asterisk.org/pub/security/AST-2017-001-13.diff
[Asterisk 14] http://downloads.asterisk.org/pub/security/AST-2017-001-14.diff

Upstream bug:

https://issues.asterisk.org/jira/browse/ASTERISK-26897

Comment 1 Andrej Nemec 2017-04-05 08:45:13 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1439102]
Affects: fedora-all [bug 1439103]

Comment 2 Product Security DevOps Team 2019-06-08 03:09:57 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.