|Description||The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Apache to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
|Debian Bugs||316173, 322607|
Vulnerable and fixed packages
The table below lists information on source packages.
|apache2 (PTS)||stretch (security), stretch||2.4.25-3+deb9u9||fixed|
|buster, buster (security)||2.4.38-3+deb10u3||fixed|
The information below is based on the following data on fixed versions.