CVE-2020-11985

Name	CVE-2020-11985
Description	IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.
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)
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
apache2 (PTS)	stretch (security), stretch	2.4.25-3+deb9u9	fixed
	buster, buster (security)	2.4.38-3+deb10u4	fixed
	bullseye, sid	2.4.46-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
apache2	source	(unstable)	2.4.25-1

Notes

https://bz.apache.org/bugzilla/show_bug.cgi?id=60251
https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1875299
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11985
https://www.openwall.com/lists/oss-security/2020/08/07/2
Upstream patch: https://svn.apache.org/r1688399
https://github.com/apache/httpd/commit/dd6c959b3625048ee15ba4ad72e6cb7bcaf91020