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

Synopsis:          Moderate: python3 security update
Advisory ID:       RHSA-2020:3888-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3888
Issue date:        2020-09-29
CVE Names:         CVE-2019-16935 CVE-2020-8492
====================================================================
1. Summary:

An update for python3 is now available for Red Hat Enterprise Linux 7.

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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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: XSS vulnerability in the documentation XML-RPC server in
server_title field (CVE-2019-16935)

* python: wrong backtracking in urllib.request.AbstractBasicAuthHandler
allows for a ReDoS (CVE-2020-8492)

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 7.9 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/):

1763229 - CVE-2019-16935 python: XSS vulnerability in the documentation XML-RPC server in server_title field
1763730 - Python3-idle is not providing python36-tools
1809065 - CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
python3-3.6.8-17.el7.src.rpm

x86_64:
python3-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-libs-3.6.8-17.el7.i686.rpm
python3-libs-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
python3-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-devel-3.6.8-17.el7.i686.rpm
python3-devel-3.6.8-17.el7.x86_64.rpm
python3-idle-3.6.8-17.el7.i686.rpm
python3-idle-3.6.8-17.el7.x86_64.rpm
python3-test-3.6.8-17.el7.i686.rpm
python3-test-3.6.8-17.el7.x86_64.rpm
python3-tkinter-3.6.8-17.el7.i686.rpm
python3-tkinter-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
python3-3.6.8-17.el7.src.rpm

x86_64:
python3-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-libs-3.6.8-17.el7.i686.rpm
python3-libs-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
python3-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-devel-3.6.8-17.el7.i686.rpm
python3-devel-3.6.8-17.el7.x86_64.rpm
python3-idle-3.6.8-17.el7.i686.rpm
python3-idle-3.6.8-17.el7.x86_64.rpm
python3-test-3.6.8-17.el7.i686.rpm
python3-test-3.6.8-17.el7.x86_64.rpm
python3-tkinter-3.6.8-17.el7.i686.rpm
python3-tkinter-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
python3-3.6.8-17.el7.src.rpm

ppc64:
python3-3.6.8-17.el7.ppc64.rpm
python3-debuginfo-3.6.8-17.el7.ppc.rpm
python3-debuginfo-3.6.8-17.el7.ppc64.rpm
python3-libs-3.6.8-17.el7.ppc.rpm
python3-libs-3.6.8-17.el7.ppc64.rpm

ppc64le:
python3-3.6.8-17.el7.ppc64le.rpm
python3-debuginfo-3.6.8-17.el7.ppc64le.rpm
python3-libs-3.6.8-17.el7.ppc64le.rpm

s390x:
python3-3.6.8-17.el7.s390x.rpm
python3-debuginfo-3.6.8-17.el7.s390.rpm
python3-debuginfo-3.6.8-17.el7.s390x.rpm
python3-libs-3.6.8-17.el7.s390.rpm
python3-libs-3.6.8-17.el7.s390x.rpm

x86_64:
python3-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-libs-3.6.8-17.el7.i686.rpm
python3-libs-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
python3-3.6.8-17.el7.ppc.rpm
python3-debug-3.6.8-17.el7.ppc.rpm
python3-debug-3.6.8-17.el7.ppc64.rpm
python3-debuginfo-3.6.8-17.el7.ppc.rpm
python3-debuginfo-3.6.8-17.el7.ppc64.rpm
python3-devel-3.6.8-17.el7.ppc.rpm
python3-devel-3.6.8-17.el7.ppc64.rpm
python3-idle-3.6.8-17.el7.ppc.rpm
python3-idle-3.6.8-17.el7.ppc64.rpm
python3-test-3.6.8-17.el7.ppc.rpm
python3-test-3.6.8-17.el7.ppc64.rpm
python3-tkinter-3.6.8-17.el7.ppc.rpm
python3-tkinter-3.6.8-17.el7.ppc64.rpm

ppc64le:
python3-debug-3.6.8-17.el7.ppc64le.rpm
python3-debuginfo-3.6.8-17.el7.ppc64le.rpm
python3-devel-3.6.8-17.el7.ppc64le.rpm
python3-idle-3.6.8-17.el7.ppc64le.rpm
python3-test-3.6.8-17.el7.ppc64le.rpm
python3-tkinter-3.6.8-17.el7.ppc64le.rpm

s390x:
python3-3.6.8-17.el7.s390.rpm
python3-debug-3.6.8-17.el7.s390.rpm
python3-debug-3.6.8-17.el7.s390x.rpm
python3-debuginfo-3.6.8-17.el7.s390.rpm
python3-debuginfo-3.6.8-17.el7.s390x.rpm
python3-devel-3.6.8-17.el7.s390.rpm
python3-devel-3.6.8-17.el7.s390x.rpm
python3-idle-3.6.8-17.el7.s390.rpm
python3-idle-3.6.8-17.el7.s390x.rpm
python3-test-3.6.8-17.el7.s390.rpm
python3-test-3.6.8-17.el7.s390x.rpm
python3-tkinter-3.6.8-17.el7.s390.rpm
python3-tkinter-3.6.8-17.el7.s390x.rpm

x86_64:
python3-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-devel-3.6.8-17.el7.i686.rpm
python3-devel-3.6.8-17.el7.x86_64.rpm
python3-idle-3.6.8-17.el7.i686.rpm
python3-idle-3.6.8-17.el7.x86_64.rpm
python3-test-3.6.8-17.el7.i686.rpm
python3-test-3.6.8-17.el7.x86_64.rpm
python3-tkinter-3.6.8-17.el7.i686.rpm
python3-tkinter-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
python3-3.6.8-17.el7.src.rpm

x86_64:
python3-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-libs-3.6.8-17.el7.i686.rpm
python3-libs-3.6.8-17.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
python3-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.i686.rpm
python3-debug-3.6.8-17.el7.x86_64.rpm
python3-debuginfo-3.6.8-17.el7.i686.rpm
python3-debuginfo-3.6.8-17.el7.x86_64.rpm
python3-devel-3.6.8-17.el7.i686.rpm
python3-devel-3.6.8-17.el7.x86_64.rpm
python3-idle-3.6.8-17.el7.i686.rpm
python3-idle-3.6.8-17.el7.x86_64.rpm
python3-test-3.6.8-17.el7.i686.rpm
python3-test-3.6.8-17.el7.x86_64.rpm
python3-tkinter-3.6.8-17.el7.i686.rpm
python3-tkinter-3.6.8-17.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-2019-16935
https://access.redhat.com/security/cve/CVE-2020-8492
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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