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Red Hat: RHSA-2021-4162 Moderate: Python Security Update

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Critical patch released for python39:3.9 and python39-devel packages impacting CentOS Stream.
An update for the python38:3.8 and python38-devel:3.8 modules 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-psutil: Double free because of refcount mishandling (CVE-2019-18874)
* python-jinja2: ReDoS vulnerability in the urlize filter (CVE-2020-28493)
* python: Information disclosure via pydoc (CVE-2021-3426)
* python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code (CVE-2021-20095, CVE-2021-42771)
* python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters(CVE-2021-23336)
* python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS (CVE-2021-28957)
* python-ipaddress: Improper input validation of octal strings (CVE-2021-29921)
* python-urllib3: ReDoS in the parsing of authority part of URL (CVE-2021-33503)
* python-pip: Incorrect handling of unicode separators in git references (CVE-2021-3572)
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 8.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue update Red Hat Enterprise Linux threat mitigation python module

References

https://access.redhat.com/security/cve/CVE-2019-18874 https://access.redhat.com/security/cve/CVE-2020-28493 https://access.redhat.com/security/cve/CVE-2021-3426 https://access.redhat.com/security/cve/CVE-2021-3572 https://access.redhat.com/security/cve/CVE-2021-20095 https://access.redhat.com/security/cve/CVE-2021-23336 https://access.redhat.com/security/cve/CVE-2021-28957 https://access.redhat.com/security/cve/CVE-2021-29921 https://access.redhat.com/security/cve/CVE-2021-33503 https://access.redhat.com/security/cve/CVE-2021-42771 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: Cython-0.29.14-4.module+el8.4.0+8888+89bc7e79.src.rpm PyYAML-5.4.1-1.module+el8.5.0+10721+14d8e0d5.src.rpm babel-2.7.0-11.module+el8.5.0+11015+9c1c7c42.src.rpm mod_wsgi-4.6.8-3.module+el8.4.0+8888+89bc7e79.src.rpm numpy-1.17.3-6.module+el8.5.0+12205+a865257a.src.rpm python-PyMySQL-0.10.1-1.module+el8.4.0+9692+8e86ab84.src.rpm python-asn1crypto-1.2.0-3.module+el8.4.0+8888+89bc7e79.src.rpm python-cffi-1.13.2-3.module+el8.4.0+8888+89bc7e79.src.rpm python-chardet-3.0.4-19.module+el8.4.0+8888+89bc7e79.src.rpm python-cryptography-2.8-3.module+el8.4.0+8888+89bc7e79.src.rpm python-idna-2.8-6.module+el8.4.0+8888+89bc7e79.src.rpm python-jinja2-2.10.3-5.module+el8.5.0+10542+ba057329.src.rpm python-lxml-4.4.1-6.module+el8.5.0+10542+ba057329.src.rpm python-markupsafe-1.1.1-6.module+el8.4.0+8888+89bc7e79.src.rpm python-ply-3.11-10.module+el8.4.0+9579+e9717e18.src.rpm python-psutil-5.6.4-4.module+el8.5.0+12031+10ce4870.src.rpm python-psycopg2-2.8.4-4.module+el8.4.0+8888+89bc7e79.src.rpm python-pycparser-2.19-3.module+el8.4.0+8888+89bc7e79.src.rpm python-pysocks-1.7.1-4.module+el8.4.0+8888+89bc7e79.src.rpm python-requests-2.22.0-9.module+el8.4.0+8888+89bc7e79.src.rpm python-urllib3-1.25.7-5.module+el8.5.0+11639+ea5b349d.src.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4162-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4162
Issue date: 2021-11-09

Topic

An update for the python38:3.8 and python38-devel:3.8 modules is nowavailable 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 issue update Red Hat Enterprise Linux threat mitigation python module

Relevant Releases Architectures

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

Red Hat Enterprise Linux CRB (v. 8) - noarch

Bugs Fixed

1772014 - CVE-2019-18874 python-psutil: Double free because of refcount mishandling

1928707 - CVE-2020-28493 python-jinja2: ReDoS vulnerability in the urlize filter

1928904 - CVE-2021-23336 python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters1935913 - CVE-2021-3426 python: Information disclosure via pydoc

1941534 - CVE-2021-28957 python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS

1955615 - CVE-2021-20095 CVE-2021-42771 python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code

1957458 - CVE-2021-29921 python-ipaddress: Improper input validation of octal strings

1962856 - CVE-2021-3572 python-pip: Incorrect handling of unicode separators in git references

1968074 - CVE-2021-33503 python-urllib3: ReDoS in the parsing of authority part of URL

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