Bug 1802545 (CVE-2020-8660) - CVE-2020-8660 envoy: TLS inspector bypassc
Summary: CVE-2020-8660 envoy: TLS inspector bypassc
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-8660
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1802569
TreeView+ depends on / blocked
 
Reported: 2020-02-13 11:51 UTC by Dhananjay Arunesh
Modified: 2021-02-16 20:34 UTC (History)
3 users (show)

Fixed In Version: envoy 1.13.1
Doc Type: If docs needed, set a value
Doc Text:
An access control bypass vulnerability was found in envoy. An attacker could send specially crafted packets over TLS v1.3 to possibly bypass security restrictions.
Clone Of:
Environment:
Last Closed: 2020-03-05 22:31:50 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:0734 0 None None None 2020-03-05 19:00:20 UTC

Description Dhananjay Arunesh 2020-02-13 11:51:58 UTC 
A vulnerability was found in Envoy. where TLS inspector could have been bypassed (not recognized as a TLS client) by
a client using only TLS 1.3. Because TLS extensions (SNI, ALPN) were not inspected, those connections might have been matched to a wrong filter chain, possibly bypassing some security restrictions in the process.
Comment 2 Mark Cooper 2020-02-24 04:41:46 UTC 
Acknowledgments:

Name: The Envoy Security Team
Comment 3 errata-xmlrpc 2020-03-05 19:00:19 UTC 
This issue has been addressed in the following products:

  OpenShift Service Mesh 1.0

Via RHSA-2020:0734 https://access.redhat.com/errata/RHSA-2020:0734
Comment 4 Product Security DevOps Team 2020-03-05 22:31:50 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-2020-8660
Comment 5 Mark Cooper 2020-03-08 22:17:53 UTC 
External References:

https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvx
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