Bug 2050748 (CVE-2021-43826) - CVE-2021-43826 envoy: Use-after-free when tunneling TCP over HTTP
Summary: CVE-2021-43826 envoy: Use-after-free when tunneling TCP over HTTP
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-43826
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: 2050760
TreeView+ depends on / blocked
 
Reported: 2022-02-04 15:06 UTC by Pedro Sampaio
Modified: 2022-04-07 20:29 UTC (History)
5 users (show)

Fixed In Version: envoy 1.18.6, envoy 1.19.3, envoy 1.20.2, envoy 1.21.1
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in envoy. If a downstream source disconnects during upstream connection establishment when tunneling TCP over HTTP, a use-after-free can occur, resulting in a denial of service.
Clone Of:
Environment:
Last Closed: 2022-04-07 20:29:17 UTC


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:1275 0 None None None 2022-04-07 18:03:48 UTC
Red Hat Product Errata RHSA-2022:1276 0 None None None 2022-04-07 17:59:17 UTC

Description Pedro Sampaio 2022-02-04 15:06:54 UTC
Use-after-free when tunneling TCP over HTTP, if downstream disconnects during upstream connection establishment.

Comment 2 errata-xmlrpc 2022-04-07 17:59:15 UTC
This issue has been addressed in the following products:

  OpenShift Service Mesh 2.0

Via RHSA-2022:1276 https://access.redhat.com/errata/RHSA-2022:1276

Comment 3 errata-xmlrpc 2022-04-07 18:03:46 UTC
This issue has been addressed in the following products:

  OpenShift Service Mesh 2.1

Via RHSA-2022:1275 https://access.redhat.com/errata/RHSA-2022:1275

Comment 4 Product Security DevOps Team 2022-04-07 20:29:15 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-2021-43826


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