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CVE-2021-20220

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. #### Notes Author| Note ---|--- [sbeattie](<https://launchpad.net/~sbeattie>) | CVE for incomplete fix for CVE-2020-10687, after 2.0.30.SP4


Affected Package


OS OS Version Package Name Package Version
ubuntu 20.04 undertow any
ubuntu 22.04 undertow any
ubuntu upstream undertow any
ubuntu upstream undertow any
ubuntu 16.04 undertow any

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