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CVE-2024-53270

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CVE-2024-53270

Published: Dec 18, 2024

Modified: Dec 18, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

envoyproxy

envoy

affected
>= 1.32.0, < 1.32.3
affected
>= 1.31.0, < 1.31.5
affected
>= 1.30.0, < 1.30.9
affected
< 1.29.12

Weaknesses (CWE)

CWE-670

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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