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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-43825 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/envoyproxy/envoy/commit/148de954ed3585d8b4298b424aa24916d0de6136 Patch  Third Party Advisory 
https://github.com/envoyproxy/envoy/commit/148de954ed3585d8b4298b424aa24916d0de6136 Patch  Third Party Advisory 
https://github.com/envoyproxy/envoy/security/advisories/GHSA-h69p-g6xg-mhhh Issue Tracking  Third Party Advisory 
https://github.com/envoyproxy/envoy/security/advisories/GHSA-h69p-g6xg-mhhh Issue Tracking  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-43825
NVD Published Date:
02/22/2022
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.