Bug 2333091 (CVE-2024-53270)

Summary: CVE-2024-53270 envoy: HTTP/1: sending overload crashes when the request is reset beforehand in envoy
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jwendell, rcernich, twalsh
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Envoy. In systems where `http1_server_abort_dispatch` is configured, Envoy does not properly handle the control flow during H1 stream resets. This can trigger a null pointer error and lead to an application crash.
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Description OSIDB Bzimport 2024-12-18 20:02:00 UTC 
Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions `sendOverloadError` is going to assume the active request exists when `envoy.load_shed_points.http1_server_abort_dispatch` is configured. If `active_request` is nullptr, only onMessageBeginImpl() is called. However, the `onMessageBeginImpl` will directly return ok status if the stream is already reset leading to the nullptr reference. The downstream reset can actually happen during the H/2 upstream reset. As a result envoy may crash. This issue has been addressed in releases 1.32.3, 1.31.5, 1.30.9, and 1.29.12. Users are advised to upgrade. Users unable to upgrade may disable `http1_server_abort_dispatch` load shed point and/or use a high threshold.
Comment 2 errata-xmlrpc 2025-02-05 09:04:20 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Service Mesh 2.6 for RHEL 8
  Red Hat OpenShift Service Mesh 2.6 for RHEL 9

Via RHSA-2025:1053 https://access.redhat.com/errata/RHSA-2025:1053