Bug 2179138 (CVE-2023-27491) - CVE-2023-27491 envoy: Envoy forwards invalid HTTP/2 and HTTP/3 downstream
Summary: CVE-2023-27491 envoy: Envoy forwards invalid HTTP/2 and HTTP/3 downstream
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2023-27491
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2178208
TreeView+ depends on / blocked
 
Reported: 2023-03-16 17:28 UTC by Anten Skrabec
Modified: 2023-08-31 05:40 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Envoy that may allow attackers to send specially crafted HTTP/2 or HTTP/3 requests to trigger parsing errors on the upstream HTTP/1 service.
Clone Of:
Environment:
Last Closed: 2023-08-11 21:11:33 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:4623 0 None None None 2023-08-11 16:48:12 UTC

Description Anten Skrabec 2023-03-16 17:28:35 UTC 
Attackers can send specifically crafted HTTP/2 or HTTP/3 requests to trigger parsing errors on HTTP/1 upstream service.
Comment 3 Pedro Sampaio 2023-04-04 21:04:33 UTC 
Public:

https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp
Comment 5 errata-xmlrpc 2023-08-11 16:48:12 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Service Mesh 2.2 for RHEL 8

Via RHSA-2023:4623 https://access.redhat.com/errata/RHSA-2023:4623
Comment 6 Product Security DevOps Team 2023-08-11 21:11:31 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-2023-27491
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