Bug 1845982 (CVE-2020-7662)

Summary:	CVE-2020-7662 npmjs-websocket-extensions: ReDoS vulnerability in Sec-WebSocket-Extensions parser
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alegrand, anpicker, bmontgom, eparis, erooth, gparvin, jburrell, jokerman, jramanat, jweiser, kakkoyun, kconner, lcosic, mloibl, nstielau, pkrupa, rcernich, scorneli, sponnaga, stcannon, surbania, tfister, thee
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	npmjs-websocket-extensions 0.1.4	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-01 19:27:56 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:	1846130, 1846131, 1846138, 1846140, 1846826, 1847294, 1847295
Bug Blocks:	1845986

Description Guilherme de Almeida Suckevicz 2020-06-10 14:20:35 UTC

websocket-extensions npm module prior to 1.0.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.

Reference:
https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv

Upstream commit:
https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237

Comment 1 Dave Baker 2020-06-10 20:46:32 UTC

Based on upstream links, this is prior to 0.1.4 (not 1.0.4)

Comment 8 Mark Cooper 2020-06-16 06:26:13 UTC

Statement:

In both OpenShift Container Platform (OCP) and OpenShift ServiceMesh (OSSM), the grafana and prometheus containers are behind OpenShift OAuth restricting access to the vulnerable websocket-extension to authenticated users only, therefore the impact is Low.

Comment 10 Mark Cooper 2020-06-16 07:22:42 UTC

OpenShift (OCP) 4.x includes a vulnerable version of websocket-extension (v0.1.3) in containers openshift4/ose-grafana and openshift4/ose-prometheus.

OpenShift ServiceMesh (OSSM) includes a vulnerable version (v0.1.3) in the openshift-service-mesh/grafana-rhel8 container.

Comment 11 Mark Cooper 2020-06-16 07:35:50 UTC

External References:

https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv

Comment 13 errata-xmlrpc 2020-07-01 18:46:07 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.1

Via RHSA-2020:2796 https://access.redhat.com/errata/RHSA-2020:2796

Comment 14 Product Security DevOps Team 2020-07-01 19:27:56 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-2020-7662

Comment 15 errata-xmlrpc 2020-07-07 19:33:44 UTC

This issue has been addressed in the following products:

  OpenShift Service Mesh 1.0

Via RHSA-2020:2861 https://access.redhat.com/errata/RHSA-2020:2861

Comment 17 errata-xmlrpc 2020-10-27 16:24:03 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2020:4298 https://access.redhat.com/errata/RHSA-2020:4298