Bug 1833184 (CVE-2020-10739)

Summary:	CVE-2020-10739 istio/envoy: crafted packet allows remote attacker to cause denial of service
Product:	[Other] Security Response	Reporter:	Mark Cooper <mcooper>
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:	istio 1.5.3, istio 1.4.9	Doc Type:	If docs needed, set a value
Doc Text:	A null pointer exception flaw was found in servicemesh-proxy. When running Telemetry v2 (not on by default in version 1.4.x), an attacker could send a specially crafted packet to the ingress gateway or proxy sidecar, triggering a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-05-14 03:15:21 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:	1833183

Description Mark Cooper 2020-05-08 01:29:34 UTC

A vulnerability was found in all versions of istio/envoy, v1.4.8 (running Telemetry v2 non-default) and v1.5.2 (running Telemetry v2 by default). A remote attacker may send a specially crafted packet to the ingress gateway or sidecar, triggering a null pointer exception which results in a denial of service.

Comment 4 Mark Cooper 2020-05-11 09:23:53 UTC

Acknowledgments:

Name: the Envoy Security Team

Comment 6 Mark Cooper 2020-05-13 00:02:48 UTC

External References:

https://istio.io/news/security/istio-security-2020-005/

Comment 7 Mark Cooper 2020-05-13 05:28:55 UTC

Upstream patch: https://github.com/istio/envoy/commit/8788a3cf255b647fd14e6b5e2585abaaedb28153#diff-fcf2cf5dd389b5285f882ba4a8708633

Comment 8 Mark Cooper 2020-05-13 06:17:59 UTC

Mitigation:

Leave the telemetry reporting in OpenShift ServiceMesh set to the default component Mixer, leaving Telemetry V2 as disabled.

Comment 9 errata-xmlrpc 2020-05-13 21:47:43 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.1

Via RHSA-2020:2148 https://access.redhat.com/errata/RHSA-2020:2148

Comment 10 Product Security DevOps Team 2020-05-14 03:15:21 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-2020-10739