First published: Wed Mar 13 2019(Updated: )
An 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 followed by an HTTP header or a Redis command. Reference: <a href="https://bugs.python.org/issue36276">https://bugs.python.org/issue36276</a>
Credit: cve@mitre.org cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/python | <0:2.7.5-86.el7 | 0:2.7.5-86.el7 |
redhat/python | <0:2.7.5-63.el7_4 | 0:2.7.5-63.el7_4 |
redhat/python | <0:2.7.5-74.el7_5 | 0:2.7.5-74.el7_5 |
redhat/python | <0:2.7.5-83.el7_6 | 0:2.7.5-83.el7_6 |
redhat/python3 | <0:3.6.8-15.1.el8 | 0:3.6.8-15.1.el8 |
redhat/python27-python | <0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
redhat/python27-python-jinja2 | <0:2.6-12.el6 | 0:2.6-12.el6 |
redhat/rh-python36-python | <0:3.6.9-2.el6 | 0:3.6.9-2.el6 |
redhat/python27-python | <0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
redhat/python27-python-jinja2 | <0:2.6-15.el7 | 0:2.6-15.el7 |
redhat/rh-python36-python | <0:3.6.9-2.el7 | 0:3.6.9-2.el7 |
Python Python | >=2.0<2.7.17 | |
Python Python | >=3.5.0<3.5.8 | |
Python Python | >=3.6.0<3.6.9 | |
Python Python | >=3.7.0<3.7.4 | |
debian/python2.7 | 2.7.18-8+deb11u1 |
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(Appears in the following advisories)
CVE-2019-9740 is a vulnerability discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
CVE-2019-9740 has a severity level of 6.5 (medium).
An attacker can exploit CVE-2019-9740 by injecting CRLF sequences into a URL parameter that the attacker controls.
The affected software includes Python versions 2.x through 2.7.16 and Python 3.x through 3.7.3.
Yes, you can find more information about CVE-2019-9740 in the following references: - [Bug Report on Python Bug Tracker](https://bugs.python.org/issue36276) - [Bug Report on Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1688170) - [Bug Report on Python Bug Tracker](https://bugs.python.org/issue30458)