CVE-2019-9947

NameCVE-2019-9947
DescriptionAn issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.2. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the query string or PATH_INFO) followed by an HTTP header or a Redis command. This is similar to CVE-2019-9740.
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 (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
python2.7 (PTS)jessie2.7.9-2+deb8u1vulnerable
jessie (security)2.7.9-2+deb8u2vulnerable
stretch (security), stretch2.7.13-2+deb9u3vulnerable
buster, sid2.7.16-2vulnerable
python3.4 (PTS)jessie3.4.2-1vulnerable
jessie (security)3.4.2-1+deb8u2vulnerable
python3.5 (PTS)stretch (security), stretch3.5.3-1+deb9u1vulnerable
python3.7 (PTS)buster3.7.3~rc1-1vulnerable
sid3.7.3-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
python2.7source(unstable)(unfixed)medium
python3.4source(unstable)(unfixed)medium
python3.5source(unstable)(unfixed)medium
python3.6source(unstable)(unfixed)medium
python3.7source(unstable)(unfixed)medium

Notes

https://bugs.python.org/issue35906
Introduced by: https://github.com/python/cpython/commit/cc54c1c0d2d05fe7404ba64c53df4b1352ed2262

Search for package or bug name: Reporting problems