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Red Hat Enterprise Linux 8 RHSA-2021-1633-01 Moderate Python3 Security Fix

red hat
Calendar Grey May 18, 2021
Dist Redhat Esm H88
A significant security patch is now accessible for python3 on Red Hat Enterprise Linux 8, targeting certain vulnerabilities and enhancing system safety.
An update for python3 is now available for Red Hat Enterprise Linux 8

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

Summary

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: CRLF injection via HTTP request method in httplib/http.client (CVE-2020-26116)
* python: Unsafe use of eval() on data retrieved via HTTP in the test suite (CVE-2020-27619)
* python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c (CVE-2021-3177)
* python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters(CVE-2021-23336)
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 8.4 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux security impact security issues python3

References

https://access.redhat.com/security/cve/CVE-2020-26116 https://access.redhat.com/security/cve/CVE-2020-27619 https://access.redhat.com/security/cve/CVE-2021-3177 https://access.redhat.com/security/cve/CVE-2021-23336 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: platform-python-debug-3.6.8-37.el8.aarch64.rpm platform-python-devel-3.6.8-37.el8.aarch64.rpm python3-debuginfo-3.6.8-37.el8.aarch64.rpm python3-debugsource-3.6.8-37.el8.aarch64.rpm python3-idle-3.6.8-37.el8.aarch64.rpm python3-tkinter-3.6.8-37.el8.aarch64.rpm
ppc64le: platform-python-debug-3.6.8-37.el8.ppc64le.rpm platform-python-devel-3.6.8-37.el8.ppc64le.rpm python3-debuginfo-3.6.8-37.el8.ppc64le.rpm python3-debugsource-3.6.8-37.el8.ppc64le.rpm python3-idle-3.6.8-37.el8.ppc64le.rpm python3-tkinter-3.6.8-37.el8.ppc64le.rpm
s390x: platform-python-debug-3.6.8-37.el8.s390x.rpm platform-python-devel-3.6.8-37.el8.s390x.rpm python3-debuginfo-3.6.8-37.el8.s390x.rpm python3-debugsource-3.6.8-37.el8.s390x.rpm python3-idle-3.6.8-37.el8.s390x.rpm python3-tkinter-3.6.8-37.el8.s390x.rpm
x86_64: platform-python-3.6.8-37.el8.i686.rpm platform-python-debug-3.6.8-37.el8.i686.rpm platform-python-debug-3.6.8-37.el8.x86_64.rpm platform-python-devel-3.6.8-37.el8.i686.rpm platform-python-devel-3.6.8-37.el8.x86_64.rpm python3-debuginfo-3.6.8-37.el8.i686.rpm python3-debuginfo-3.6.8-37.el8.x86_64.rpm python3-debugsource-3.6.8-37.el8.i686.rpm python3-debugsource-3.6.8-37.el8.x86_64.rpm python3-idle-3.6.8-37.el8.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:1633-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1633
Issue date: 2021-05-18

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux security impact security issues python3

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

Bugs Fixed

1868003 - python36: Support for alternative architectures' names in Python importlib

1883014 - CVE-2020-26116 python: CRLF injection via HTTP request method in httplib/http.client

1889886 - CVE-2020-27619 python: Unsafe use of eval() on data retrieved via HTTP in the test suite

1917691 - python3: pathfix.py does not support -a and -k options

1918168 - CVE-2021-3177 python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c

1928904 - CVE-2021-23336 python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters

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