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CVE-2024-53270— HTTP/1: sending overload crashes when the request is reset beforehand in envoy

Quick assessment

Affected
envoyproxy envoy
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Envoy Proxy是Envoy Proxy开源的一个云原生高性能边缘/中间/服务代理。 Envoy Proxy存在安全漏洞，该漏洞源于提前重置请求时发送载荷可能导致崩溃。

CVSS 7.5 · High EPSS 0.70% · P51

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-53270

Vulnerability Information
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Vulnerability Title
HTTP/1: sending overload crashes when the request is reset beforehand in envoy
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
控制流实现总是不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Envoy Proxy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Envoy Proxy是Envoy Proxy开源的一个云原生高性能边缘/中间/服务代理。 Envoy Proxy存在安全漏洞，该漏洞源于提前重置请求时发送载荷可能导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
envoyproxy envoy >= 1.32.0, < 1.32.3 -

II. Public POCs for CVE-2024-53270

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III. Intelligence Information for CVE-2024-53270

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Patches & Fixes for CVE-2024-53270 (1)

Vendor Advisories for CVE-2024-53270 (1)

Same Patch Batch · envoyproxy · 2024-12-18 · 3 CVEs total

CVE-2024-53271 7.1 HIGH HTTP/1.1 multiple issues with envoy.reloadable_features.http1_balsa_delay_reset in envoy
CVE-2024-53269 4.5 MEDIUM Happy Eyeballs: Validate that additional_address are IP addresses instead of crashing when

IV. Related Vulnerabilities

Same product: envoy
Same vendor: envoyproxy
Same weakness: CWE-670

V. Comments for CVE-2024-53270

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