Alerts This Week
Warning Icon 1 924
Alerts This Week
Warning Icon 1 924

Red Hat: RHSA-2021-1879-01 Moderate: Python3.8 Buffer Overflow Risk

red hat
Calendar Grey May 18, 2021
Dist Redhat Esm H88
Keep your Python installations secure by utilizing the most recent security advisory from Red Hat, which tackles urgent vulnerabilities in Python3.8.
An update for the python38:3.8 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, 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-lxml: mXSS due to the use of improper parser (CVE-2020-27783)
* python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c (CVE-2021-3177)
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 Red Hat buffer overflow issue web security Python

References

https://access.redhat.com/security/cve/CVE-2020-26116 https://access.redhat.com/security/cve/CVE-2020-27783 https://access.redhat.com/security/cve/CVE-2021-3177 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):
Source: Cython-0.29.14-4.module+el8.4.0+8888+89bc7e79.src.rpm PyYAML-5.3.1-1.module+el8.4.0+8888+89bc7e79.src.rpm babel-2.7.0-10.module+el8.4.0+8888+89bc7e79.src.rpm mod_wsgi-4.6.8-3.module+el8.4.0+8888+89bc7e79.src.rpm numpy-1.17.3-5.module+el8.4.0+8888+89bc7e79.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-jinja2-2.10.3-4.module+el8.4.0+8888+89bc7e79.src.rpm python-lxml-4.4.1-5.module+el8.4.0+9001+fc421f6c.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-5.6.4-3.module+el8.4.0+8888+89bc7e79.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-urllib3-1.25.7-4.module+el8.4.0+8888+89bc7e79.src.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:1879-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1879
Issue date: 2021-05-18

Topic

An update for the python38:3.8 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 Red Hat buffer overflow issue web security Python

Relevant Releases Architectures

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

Bugs Fixed

1868006 - python38: Support for alternative architectures' names in Python importlib

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

1886755 - python38:3.8/python38: Update the python 3.8 interpreter to its latest bugfix release 3.8.6

1901633 - CVE-2020-27783 python-lxml: mXSS due to the use of improper parser

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

1920596 - pyhton38:3.8 Rebase python-PyMySQL to the 0.10.x release

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here