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Red Hat Enterprise Linux 8 RHSA-2022:1821-01 Moderate: python27 DoS

red hat
Calendar Grey May 10, 2022
Dist Redhat Esm H88
Oracle pushes important security patch for python38:3.8 in Oracle Linux 8 to mitigate risks and enhance performance.
An update for the python27:2.7 module 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 that supports modules, classes, exceptions, high-level dynamic data types, and dynamic typing. The python27 packages provide a stable release of Python 2.7 with a number of additional utilities and database connectorsfor MySQL and PostgreSQL.
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-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through (CVE-2021-43818)
* 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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate update DoS Red Hat Enterprise Linux python27

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-2021-43818 https://access.redhat.com/security/cve/CVE-2022-0391 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.6_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: Cython-0.28.1-7.module+el8.1.0+3111+de3f2d8e.src.rpm PyYAML-3.12-16.module+el8.1.0+3111+de3f2d8e.src.rpm babel-2.5.1-10.module+el8.5.0+11014+88fc0d0b.src.rpm numpy-1.14.2-16.module+el8.4.0+9406+221a4565.src.rpm pytest-3.4.2-13.module+el8.1.0+3111+de3f2d8e.src.rpm python-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.src.rpm python-attrs-17.4.0-10.module+el8.1.0+3111+de3f2d8e.src.rpm python-backports-1.0-16.module+el8.4.0+9193+f3daf6ef.src.rpm python-backports-ssl_match_hostname-3.5.0.1-12.module+el8.4.0+9193+f3daf6ef.src.rpm python-chardet-3.0.4-10.module+el8.1.0+3111+de3f2d8e.src.rpm python-coverage-4.5.1-4.module+el8.1.0+3111+de3f2d8e.src.rpm python-dns-1.15.0-10.module+el8.1.0+3111+de3f2d8e.src.rpm python-docs-2.7.16-2.module+el8.1.0+3111+de3f2d8e.src.rpm python-docutils-0.14-12.module+el8.1.0+3111+de3f2d8e.src.rpm python-funcsigs-1.0.2-13.module+el8.1.0+3111+de3f2d8e.src.rpm python-idna-2.5-7.module+el8.1.0+3111+de3f2d8e.src.rpm python-ipaddress-1.0.18-6.module+el8.1.0+3111+de3f2d8e.src.rpm python-jinja2-2.10-9.module+el8.5.0+10541+706bb066.src.rpm python-lxml-4.2.3-6.module+el8.6.0+13959+8e368262.src.rpm python-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.src.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:1821-01
Product: Red Hat Enterprise Linux
Advisory URL:
Issue date: 2022-05-10

Topic

An update for the python27:2.7 module is now available for Red HatEnterprise 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 update DoS Red Hat Enterprise Linux python27

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

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

2006792 - RHEL 8 Python 2.7: pip contains bundled pre-built exe files in site-packages/pip/_vendor/distlib/

2032569 - CVE-2021-43818 python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through

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

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