CVE-2020-13950

Published: 10 June 2021

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
Upstream
Released (2.4.46-6)
Ubuntu 21.04 (Hirsute Hippo)
Released (2.4.46-4ubuntu1.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2.4.41-4ubuntu3.3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not present)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(code not present)
Patches:
Upstream: https://svn.apache.org/r1678771
Upstream: https://github.com/apache/httpd/commit/8c162db8b65b2193e622b780e8c6516d4265f68b
Upstream: https://github.com/apache/httpd/commit/fa22b50457c81465b5079dc44c7f1f1cb7431f5d (2.4 backport)