Bug 1802545 (CVE-2020-8660)

Summary:	CVE-2020-8660 envoy: TLS inspector bypassc
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	kconner, rcernich, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	envoy 1.13.1	Doc Type:	If docs needed, set a value
Doc Text:	An access control bypass vulnerability was found in envoy. An attacker could send specially crafted packets over TLS v1.3 to possibly bypass security restrictions.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-05 22:31:50 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:
Bug Blocks:	1802569

Description Dhananjay Arunesh 2020-02-13 11:51:58 UTC

A vulnerability was found in Envoy. where TLS inspector could have been bypassed (not recognized as a TLS client) by
a client using only TLS 1.3. Because TLS extensions (SNI, ALPN) were not inspected, those connections might have been matched to a wrong filter chain, possibly bypassing some security restrictions in the process.

Comment 2 Mark Cooper 2020-02-24 04:41:46 UTC

Acknowledgments:

Name: The Envoy Security Team

Comment 3 errata-xmlrpc 2020-03-05 19:00:19 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.0

Via RHSA-2020:0734 https://access.redhat.com/errata/RHSA-2020:0734

Comment 4 Product Security DevOps Team 2020-03-05 22:31:50 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-8660

Comment 5 Mark Cooper 2020-03-08 22:17:53 UTC

External References:

https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvx