CVE-2024-53270

HTTP/1: sending overload crashes when the request is reset beforehand in envoy

Published Dec 18, 2024 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-51925 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.
History
Type Values Removed Values Added
First Time appeared Envoyproxy
Envoyproxy envoy
Weaknesses CWE-476
CPEs cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Vendors & Products Envoyproxy
Envoyproxy envoy
Type Values Removed Values Added
Metrics epss

{'score': 0.00187}

epss

{'score': 0.00201}

Type Values Removed Values Added
First Time appeared Redhat
Redhat service Mesh
CPEs cpe:/a:redhat:service_mesh:2.6::el9
Vendors & Products Redhat
Redhat service Mesh
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title HTTP/1: sending overload crashes when the request is reset beforehand in envoy
Weaknesses CWE-670
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Dec 18, 2024, 9:35 PM
Reserved
Nov 19, 2024, 8:08 PM
Status
Analyzed
Published
Dec 18, 2024, 8:15 PM
Modified
Jun 17, 2026, 8:08 AM
Severity
Important
Public date
Dec 18, 2024, 7:12 PM