CVE-2016-1000110

NameCVE-2016-1000110
DescriptionThe CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY variable name clash in a CGI script, which could allow a remote attacker to redirect HTTP requests.
SourceCVE (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 severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
python2.7 (PTS)stretch2.7.13-2+deb9u3fixed
stretch (security)2.7.13-2+deb9u4fixed
buster2.7.16-2+deb10u1fixed
bullseye, sid2.7.18-1fixed
python3.5 (PTS)stretch3.5.3-1+deb9u1fixed
stretch (security)3.5.3-1+deb9u3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
python2.6source(unstable)(unfixed)unimportant
python2.7source(unstable)2.7.12-2unimportant
python3.2source(unstable)(unfixed)unimportant
python3.4source(unstable)(unfixed)unimportant
python3.5source(unstable)3.5.2-3unimportant

Notes

https://bugs.python.org/issue27568
https://github.com/python/cpython/commit/436fe5a447abb69e5e5a4f453325c422af02dcaa (3.4)
No part of Python does set HTTP_PROXY based on a Proxy: header, the Python bug
just provides a hardening to discard HTTP_PROXY if it thinks a Python script is
running as a CGI script

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