Bug 1844254 (CVE-2020-8663)

Summary:	CVE-2020-8663 envoy: Resource exhaustion when accepting too many connections
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	kconner, rcernich, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	envoy 1.14.2	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in envoy in versions through 1.14.1. Accepting too many connections may lead to an exhaustion of file descriptors and/or memory. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-01 19:27:51 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:	1844256

Description Pedro Sampaio 2020-06-04 21:35:25 UTC

Envoy version 1.14.1 or earlier may exhaust file descriptors and/or memory when accepting too many connections.

Comment 1 Pedro Sampaio 2020-06-04 21:35:28 UTC

Acknowledgments:

Name: the Envoy security team

Comment 3 Mark Cooper 2020-06-30 07:49:10 UTC

Statement:

A uncontrolled resource consumption vulnerability was found in Envoy. An attacker can initiate too many connections to the proxy potentially exhausting file descriptors and/or memory resulting in a denial of service.

Comment 4 Mark Cooper 2020-06-30 22:04:09 UTC

External References:

https://istio.io/latest/news/security/istio-security-2020-007/

Comment 5 Mark Cooper 2020-06-30 23:02:30 UTC

Upstream commit: https://github.com/envoyproxy/envoy/commit/dfddb529e914d794ac552e906b13d71233609bf7

Comment 6 Mark Cooper 2020-06-30 23:20:28 UTC

And: https://github.com/envoyproxy/envoy/commit/542f84c66e9f6479bc31c6f53157c60472b25240

Comment 7 errata-xmlrpc 2020-07-01 18:44:32 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.1

Via RHSA-2020:2798 https://access.redhat.com/errata/RHSA-2020:2798

Comment 8 Product Security DevOps Team 2020-07-01 19:27:51 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-2020-8663

Comment 9 errata-xmlrpc 2020-07-07 19:34:33 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.0

Via RHSA-2020:2864 https://access.redhat.com/errata/RHSA-2020:2864