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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: python27-python and python27-python-pip security update
Advisory ID:       RHSA-2022:1663-01
Product:           Red Hat Software Collections
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:1663
Issue date:        2022-05-02
CVE Names:         CVE-2021-3733 CVE-2021-3737 CVE-2021-4189 
                   CVE-2022-0391 
=====================================================================

1. Summary:

An update for python27-python and python27-python-pip is now available for
Red Hat Software Collections.

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 Software Collections for Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64le, s390x, x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

3. Description:

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.

Security Fix(es):

* python: urllib: Regular expression DoS in AbstractBasicAuthHandler
(CVE-2021-3733)

* python: ftplib should not use the host from the PASV response
(CVE-2021-4189)

* python: urllib.parse does not sanitize URLs containing ASCII newline and
tabs (CVE-2022-0391)

* python: urllib: HTTP client possible infinite loop on a 100 Continue
response (CVE-2021-3737)

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.

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/):

1995162 - CVE-2021-3737 python: urllib: HTTP client possible infinite loop on a 100 Continue response
1995234 - CVE-2021-3733 python: urllib: Regular expression DoS in AbstractBasicAuthHandler
2036020 - CVE-2021-4189 python: ftplib should not use the host from the PASV response
2047376 - CVE-2022-0391 python: urllib.parse does not sanitize URLs containing ASCII newline and tabs
2064442 - SCL Python 2.7: pip contains bundled pre-built exe files in site-packages/pip/_vendor/distlib/ [rhscl-3.8.z]

6. Package List:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):

Source:
python27-python-2.7.18-4.el7.src.rpm
python27-python-pip-8.1.2-7.el7.src.rpm

noarch:
python27-python-pip-8.1.2-7.el7.noarch.rpm

ppc64le:
python27-python-2.7.18-4.el7.ppc64le.rpm
python27-python-debug-2.7.18-4.el7.ppc64le.rpm
python27-python-debuginfo-2.7.18-4.el7.ppc64le.rpm
python27-python-devel-2.7.18-4.el7.ppc64le.rpm
python27-python-libs-2.7.18-4.el7.ppc64le.rpm
python27-python-test-2.7.18-4.el7.ppc64le.rpm
python27-python-tools-2.7.18-4.el7.ppc64le.rpm
python27-tkinter-2.7.18-4.el7.ppc64le.rpm

s390x:
python27-python-2.7.18-4.el7.s390x.rpm
python27-python-debug-2.7.18-4.el7.s390x.rpm
python27-python-debuginfo-2.7.18-4.el7.s390x.rpm
python27-python-devel-2.7.18-4.el7.s390x.rpm
python27-python-libs-2.7.18-4.el7.s390x.rpm
python27-python-test-2.7.18-4.el7.s390x.rpm
python27-python-tools-2.7.18-4.el7.s390x.rpm
python27-tkinter-2.7.18-4.el7.s390x.rpm

x86_64:
python27-python-2.7.18-4.el7.x86_64.rpm
python27-python-debug-2.7.18-4.el7.x86_64.rpm
python27-python-debuginfo-2.7.18-4.el7.x86_64.rpm
python27-python-devel-2.7.18-4.el7.x86_64.rpm
python27-python-libs-2.7.18-4.el7.x86_64.rpm
python27-python-test-2.7.18-4.el7.x86_64.rpm
python27-python-tools-2.7.18-4.el7.x86_64.rpm
python27-tkinter-2.7.18-4.el7.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7):

Source:
python27-python-2.7.18-4.el7.src.rpm
python27-python-pip-8.1.2-7.el7.src.rpm

noarch:
python27-python-pip-8.1.2-7.el7.noarch.rpm

x86_64:
python27-python-2.7.18-4.el7.x86_64.rpm
python27-python-debug-2.7.18-4.el7.x86_64.rpm
python27-python-debuginfo-2.7.18-4.el7.x86_64.rpm
python27-python-devel-2.7.18-4.el7.x86_64.rpm
python27-python-libs-2.7.18-4.el7.x86_64.rpm
python27-python-test-2.7.18-4.el7.x86_64.rpm
python27-python-tools-2.7.18-4.el7.x86_64.rpm
python27-tkinter-2.7.18-4.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-3733
https://access.redhat.com/security/cve/CVE-2021-3737
https://access.redhat.com/security/cve/CVE-2021-4189
https://access.redhat.com/security/cve/CVE-2022-0391
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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