Bug 1844251 (CVE-2020-12603)

Summary:	CVE-2020-12603 envoy: Resource exhaustion when proxying HTTP/2 requests or responses with small data frames
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. An excessive amount of memory may be consumed when proxying HTTP/2 requests and responses that contain many small (e.g. 1 byte) data frames. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-01 19:27:45 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 21:18:37 UTC

Envoy through 1.14.1 may consume excessive amounts of memory when proxying HTTP/2 requests or responses with many small (e.g., 1 byte) data frames.

Comment 1 Pedro Sampaio 2020-06-04 21:35:12 UTC

Acknowledgments:

Name: the Envoy security team

Comment 3 Mark Cooper 2020-06-30 07:40:58 UTC

Statement:

A uncontrolled resource consumption vulnerability was found in Envoy. An attacker could craft many HTTP/2 requests (or responses) with very small data frames, to cause the proxy to consume excessive amounts of memory potentially resulting in a denial of service.

Comment 4 Mark Cooper 2020-06-30 22:03:56 UTC

External References:

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

Comment 5 Mark Cooper 2020-06-30 23:07:05 UTC

Upstream commit: https://github.com/envoyproxy/envoy/commit/0e49a495826ea9e29134c1bd54fdeb31a034f40c

Comment 6 errata-xmlrpc 2020-07-01 18:44:29 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 7 Product Security DevOps Team 2020-07-01 19:27:45 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-2020-12603

Comment 8 errata-xmlrpc 2020-07-07 19:34:31 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