CVE-2024-53270

HIGH EPSS 48.0%
Published Dec 18, 20241y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Dec 18, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
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

Threat Intelligence

EPSS Exploit Probability
48.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-476 NULL Pointer Dereference Memory Safety
CWE-670

Affected Products 4

VendorProductVersionRange
envoyproxyenvoy* <1.29.12
envoyproxyenvoy*≥1.30.0  –  <1.30.9
envoyproxyenvoy*≥1.31.0  –  <1.31.5
envoyproxyenvoy*≥1.32.0  –  <1.32.3

References 2

  • github.com https://github.com/envoyproxy/envoy/pull/37743/commits/6cf8afda956ba67c9afad185b962325a5242ef02
    Patch
  • github.com https://github.com/envoyproxy/envoy/security/advisories/GHSA-q9qv-8j52-77p3
    ExploitMitigationThird Party Advisory

Remediation

  • github.com https://github.com/envoyproxy/envoy/pull/37743/commits/6cf8afda956ba67c9afad185b962325a5242ef02
    Patch