Bug 1996933 (CVE-2021-32777)

Summary: CVE-2021-32777 envoyproxy/envoy: HTTP request with multiple value headers can bypass authorization policies
Product: [Other] Security Response Reporter: Mark Cooper <mcooper>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jwendell, kconner, rcernich, security-response-team, twalsh
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: envoyproxy/envoy 1.19.1, envoyproxy/envoy 1.18.4, envoyproxy/envoy 1.17.4, envoyrproxy/envoy 1.16.5 Doc Type: If docs needed, set a value
Doc Text:
An authorization bypass vulnerability was found in envoyproxy/envoy. Envoy incorrectly evaluates an HTTP request with multiple `value` headers. This flaw allows an attacker to bypass rule policies that use the `ext_authz` extension. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2021-08-25 15:35:02 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: 1996910    

Description Mark Cooper 2021-08-24 03:21:36 UTC 
Envoy proxy through 1.19.1 contains a vulnerability where a HTTP request with multiple value headers can bypass authorization policies.
Comment 2 errata-xmlrpc 2021-08-25 09:34:42 UTC 
This issue has been addressed in the following products:

  OpenShift Service Mesh 1.1

Via RHSA-2021:3273 https://access.redhat.com/errata/RHSA-2021:3273
Comment 3 errata-xmlrpc 2021-08-25 09:35:29 UTC 
This issue has been addressed in the following products:

  OpenShift Service Mesh 2.0

Via RHSA-2021:3272 https://access.redhat.com/errata/RHSA-2021:3272
Comment 4 Product Security DevOps Team 2021-08-25 15:35:02 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-2021-32777