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Red Hat Enterprise Linux 8 RHSA-2021-4057-01 Moderate: Python3 DoS Alert

red hat
Calendar Grey November 2, 2021
Dist Redhat Esm H88
Important Python3 security patch resolves Denial-of-Service vulnerability for Red Hat Enterprise Linux users. Ensure to implement updates for protection.
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: urllib: Regular expression DoS in AbstractBasicAuthHandler (CVE-2021-3733)
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.

Topics%20covered

Topics Covered

security advisory DoS issue Red Hat Enterprise Linux moderate impact python update

References

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: platform-python-debug-3.6.8-39.el8_4.aarch64.rpm platform-python-devel-3.6.8-39.el8_4.aarch64.rpm python3-debuginfo-3.6.8-39.el8_4.aarch64.rpm python3-debugsource-3.6.8-39.el8_4.aarch64.rpm python3-idle-3.6.8-39.el8_4.aarch64.rpm python3-tkinter-3.6.8-39.el8_4.aarch64.rpm
ppc64le: platform-python-debug-3.6.8-39.el8_4.ppc64le.rpm platform-python-devel-3.6.8-39.el8_4.ppc64le.rpm python3-debuginfo-3.6.8-39.el8_4.ppc64le.rpm python3-debugsource-3.6.8-39.el8_4.ppc64le.rpm python3-idle-3.6.8-39.el8_4.ppc64le.rpm python3-tkinter-3.6.8-39.el8_4.ppc64le.rpm
s390x: platform-python-debug-3.6.8-39.el8_4.s390x.rpm platform-python-devel-3.6.8-39.el8_4.s390x.rpm python3-debuginfo-3.6.8-39.el8_4.s390x.rpm python3-debugsource-3.6.8-39.el8_4.s390x.rpm python3-idle-3.6.8-39.el8_4.s390x.rpm python3-tkinter-3.6.8-39.el8_4.s390x.rpm
x86_64: platform-python-3.6.8-39.el8_4.i686.rpm platform-python-debug-3.6.8-39.el8_4.i686.rpm platform-python-debug-3.6.8-39.el8_4.x86_64.rpm platform-python-devel-3.6.8-39.el8_4.i686.rpm platform-python-devel-3.6.8-39.el8_4.x86_64.rpm python3-debuginfo-3.6.8-39.el8_4.i686.rpm python3-debuginfo-3.6.8-39.el8_4.x86_64.rpm python3-debugsource-3.6.8-39.el8_4.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4057-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4057
Issue date: 2021-11-02

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 DoS issue Red Hat Enterprise Linux moderate impact python update

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

1995234 - CVE-2021-3733 python: urllib: Regular expression DoS in AbstractBasicAuthHandler

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