7.5 - RHSA-2019:3335

Problem Description:

An update for the python27:2.7 module is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, and dynamic typing.

Security Fix(es):

* numpy: crafted serialized object passed in numpy.load() in pickle python module allows arbitrary code execution (CVE-2019-6446)

* python: CRLF injection via the query part of the url passed to urlopen() (CVE-2019-9740)

* python: CRLF injection via the path part of the url passed to urlopen() (CVE-2019-9947)

* python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms (CVE-2019-9948)

* python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on internal service (CVE-2019-11236)

* python-urllib3: Certification mishandle when error should be thrown (CVE-2019-11324)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1667950 - CVE-2019-6446 numpy: crafted serialized object passed in numpy.load() in pickle python module allows arbitrary code execution 1680967 - Rebase python2 to 2.7.16 for compatibility with OpenSSL 1.1.1 and TLS 1.3 1688169 - CVE-2019-9740 python: CRLF injection via the query part of the url passed to urlopen() 1695570 - CVE-2019-9948 python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms 1695572 - CVE-2019-9947 python: CRLF injection via the path part of the url passed to urlopen() 1700824 - CVE-2019-11236 python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on internal service 1700993 - python27 module: Include missing debuginfo files caused by an MBS bug 1702473 - CVE-2019-11324 python-urllib3: Certification mishandle when error should be thrown 1709599 - installing python2-scipy doesn't properly pull in python2-six as a dependency 1718398 - Use RPM built wheels of setuptools and pip in Python's ensurepip 1734126 - With FIPS enabled python2 able to load non-compliant md5 crypto modules