RHSA-2020:4273: Moderate: python27 security, bug fix, and enhancement update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.<br>The following packages have been upgraded to a later upstream version: python27-python (2.7.18). (BZ#1882656)<br>Security Fix(es):<br><li> python: CRLF injection via the host part of the url passed to urlopen() (CVE-2019-18348)</li> <li> python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)</li> <li> python-pip: directory traversal in _download_http_url() function in src/pip/_internal/download.py (CVE-2019-20916)</li> <li> python: CRLF injection via HTTP request method in httplib/http.client (CVE-2020-26116)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.<br>Bug Fix(es):<br><li> python27-python-pip: Bundles own CA bundle instead of using system CA bundle (BZ#1882668)</li> <li> python27-python-pip: Contains multiple bundled libraries, and has no bundled() provides (BZ#1882669)</li>