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

Synopsis:          Moderate: python3 security and bug fix update
Advisory ID:       RHSA-2020:1764-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:1764
Issue date:        2020-04-28
CVE Names:         CVE-2018-20852 CVE-2019-16056 
====================================================================
1. Summary:

An update for python3 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, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, 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: Cookie domain check returns incorrect results (CVE-2018-20852)

* python: email.utils.parseaddr wrongly parses email addresses
(CVE-2019-16056)

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 8.2 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/):

1712977 - test_gdb: test_gc() fails on s390x with: Unable to locate python frame
1714733 - test_gdb failures on ppc64le
1740347 - CVE-2018-20852 python: Cookie domain check returns incorrect results
1749576 - [Amazon RHEL8.2 FEAT] Python3 - Enable "Expensive" Optimizations
1749839 - CVE-2019-16056 python: email.utils.parseaddr wrongly parses email addresses
1756217 - Lower footprint of platform-python
1761599 - FAIL_RETURN_IN_FIPS_MODE() patch breaks mod_wsgi: ValueError: unsupported hash type blake2b
1774471 - Python os.urandom() is not FIPS compliant

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

aarch64:
platform-python-debug-3.6.8-23.el8.aarch64.rpm
platform-python-devel-3.6.8-23.el8.aarch64.rpm
python3-debuginfo-3.6.8-23.el8.aarch64.rpm
python3-debugsource-3.6.8-23.el8.aarch64.rpm
python3-idle-3.6.8-23.el8.aarch64.rpm
python3-tkinter-3.6.8-23.el8.aarch64.rpm

ppc64le:
platform-python-debug-3.6.8-23.el8.ppc64le.rpm
platform-python-devel-3.6.8-23.el8.ppc64le.rpm
python3-debuginfo-3.6.8-23.el8.ppc64le.rpm
python3-debugsource-3.6.8-23.el8.ppc64le.rpm
python3-idle-3.6.8-23.el8.ppc64le.rpm
python3-tkinter-3.6.8-23.el8.ppc64le.rpm

s390x:
platform-python-debug-3.6.8-23.el8.s390x.rpm
platform-python-devel-3.6.8-23.el8.s390x.rpm
python3-debuginfo-3.6.8-23.el8.s390x.rpm
python3-debugsource-3.6.8-23.el8.s390x.rpm
python3-idle-3.6.8-23.el8.s390x.rpm
python3-tkinter-3.6.8-23.el8.s390x.rpm

x86_64:
platform-python-3.6.8-23.el8.i686.rpm
platform-python-debug-3.6.8-23.el8.i686.rpm
platform-python-debug-3.6.8-23.el8.x86_64.rpm
platform-python-devel-3.6.8-23.el8.i686.rpm
platform-python-devel-3.6.8-23.el8.x86_64.rpm
python3-debuginfo-3.6.8-23.el8.i686.rpm
python3-debuginfo-3.6.8-23.el8.x86_64.rpm
python3-debugsource-3.6.8-23.el8.i686.rpm
python3-debugsource-3.6.8-23.el8.x86_64.rpm
python3-idle-3.6.8-23.el8.i686.rpm
python3-idle-3.6.8-23.el8.x86_64.rpm
python3-test-3.6.8-23.el8.i686.rpm
python3-tkinter-3.6.8-23.el8.i686.rpm
python3-tkinter-3.6.8-23.el8.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
python3-3.6.8-23.el8.src.rpm

aarch64:
platform-python-3.6.8-23.el8.aarch64.rpm
python3-debuginfo-3.6.8-23.el8.aarch64.rpm
python3-debugsource-3.6.8-23.el8.aarch64.rpm
python3-libs-3.6.8-23.el8.aarch64.rpm
python3-test-3.6.8-23.el8.aarch64.rpm

ppc64le:
platform-python-3.6.8-23.el8.ppc64le.rpm
python3-debuginfo-3.6.8-23.el8.ppc64le.rpm
python3-debugsource-3.6.8-23.el8.ppc64le.rpm
python3-libs-3.6.8-23.el8.ppc64le.rpm
python3-test-3.6.8-23.el8.ppc64le.rpm

s390x:
platform-python-3.6.8-23.el8.s390x.rpm
python3-debuginfo-3.6.8-23.el8.s390x.rpm
python3-debugsource-3.6.8-23.el8.s390x.rpm
python3-libs-3.6.8-23.el8.s390x.rpm
python3-test-3.6.8-23.el8.s390x.rpm

x86_64:
platform-python-3.6.8-23.el8.x86_64.rpm
python3-debuginfo-3.6.8-23.el8.i686.rpm
python3-debuginfo-3.6.8-23.el8.x86_64.rpm
python3-debugsource-3.6.8-23.el8.i686.rpm
python3-debugsource-3.6.8-23.el8.x86_64.rpm
python3-libs-3.6.8-23.el8.i686.rpm
python3-libs-3.6.8-23.el8.x86_64.rpm
python3-test-3.6.8-23.el8.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-2018-20852
https://access.redhat.com/security/cve/CVE-2019-16056
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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