Fedora 30: FEDORA-2019-0c91ce7b3c Critical: Python2 OpenSSL Fix

Python 2 is an old version of the language that is incompatible with the 3.x

line of releases. The language is mostly the same, but many details, especially

how built-in objects like dictionaries and strings work, have changed

considerably, and a lot of deprecated features have finally been removed in the

3.x line.

Note that documentation for Python 2 is provided in the python2-docs

package.

This package provides the "python2" executable; most of the actual

implementation is within the "python2-libs" package.

Update legacy Python to 2.7.16. Most significant improvement is that is builds

against OpenSSL 1.1.1. See [upstream release

announcement](https://www.python.org/downloads/release/python-2716/) and

[changelog](https://github.com/python/cpython/blob/2.7/Misc/NEWS.d/2.7.16.rst)

(+ [rc1 changelog](rc1.rst)). Fixes the following CVEs: *

[CVE-2019-5010](https://access.redhat.com/security/cve/cve-2019-5010) Fix a NULL

pointer deref in ssl module. The cert parser did not handle CRL distribution

points with empty DP or URI correctly. A malicious or buggy certificate can

result into segfault. Vulnerability (TALOS-2018-0758) reported by Colin Read and

Nicolas Edet of Cisco. *

[CVE-2013-1752](https://access.redhat.com/security/cve/cve-2013-1752): Change

use of readline() in `imaplib.IMAP4_SSL` to limit line length.

([CVE-2018-14647](https://access.redhat.com/security/cve/cve-2018-14647) is

listed in upstream changelog, but it was already backported in Fedora.) Note

that Python 2 is deprecated in Fedora 30 and users are advised to switch to

Python 3. Upstream support of Python 2 ends on 2020-01-01.

[ 1 ] Bug #1643450 - Python 2 is built against an old OpenSSL (1.0.1) while 1.1.1 is available in F29

https://bugzilla.redhat.com/show_bug.cgi?id=1643450

su -c 'dnf upgrade --advisory FEDORA-2019-0c91ce7b3c' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

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https://fedoraproject.org/security/

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