Bug 1930818 (CVE-2020-35776)

Summary:	CVE-2020-35776 asterisk: remote crash in res_pjsip_diversion
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
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, jsmith.fedora, rbryant, security-response-team
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:	2021-02-19 19:01:53 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:	1930819
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-02-19 16:29:10 UTC

A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.

References:
https://downloads.asterisk.org/pub/security/AST-2021-001.html
https://issues.asterisk.org/jira/browse/ASTERISK-29227

Comment 1 Guilherme de Almeida Suckevicz 2021-02-19 16:30:20 UTC

Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1930819]

Comment 2 Product Security DevOps Team 2021-02-19 19:01:53 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.