CVE-2021-43825

 

Published at: - 23-02-2022 12:15

Last modified: - 02-03-2022 07:13

Total changes: - 3

Description

Envoy is an open source edge and service proxy, designed for cloud-native applications. Sending a locally generated response must stop further processing of request or response data. Envoy tracks the amount of buffered request and response data and aborts the request if the amount of buffered data is over the limit by sending 413 or 500 responses. However when the buffer overflows while response is processed by the filter chain the operation may not be aborted correctly and result in accessing a freed memory block. If this happens Envoy will crash resulting in a denial of service.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://github.com/envoyproxy/envoy/commit/148de954ed3585d8b4298b424aa24916d0de6136
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-h69p-g6xg-mhhh

 

Keywords

NVD

 

CVE-2021-43825

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures