CVE and update status of the FreeBSD ports tree4,526 unaddressed CVEs in 616 portsAll times are CET

CVE details

CVE-2021-21409

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.

Score
5.9 medium
Published
2021-03-30
Links
NVD · cve.org

Affected ports (1)

PortPackageVersionStatusMaintainer
java/nettynetty4.1.53_2unaddressedglewis@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>netty</name>
	<range><lt>4.1.61</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Netty is an open-source, asynchronous event-driven network application
	framework for rapid development of maintainable high performance
	protocol servers & clients. In Netty (io.netty:netty-codec-http2)
	before version 4.1.61.Final there is a vulnerability that enables
	request smuggling. The content-length header is not correctly
	validated if the request only uses a single Http2HeaderFrame with the
	endStream set to to true. This could lead to request smuggling if the
	request is proxied to a remote peer and translated to HTTP/1.1. This
	is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to
	fix this one case. This was fixed as part of 4.1.61.Final.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2021-21409</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2021-21409</url>
    </references>
    <dates>
      <discovery>2021-03-30</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>