Security Advisory

CVE-2021-20220

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-02-23 17:21:44

Last updated 2024-08-03 17:30:07

Assigner redhat

State PUBLISHED

Description

A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.

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