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Red Hat Enterprise Linux 7 RHSA-2022:5235-01 Moderate Python Fixes

red hat
Calendar Grey June 28, 2022
Dist Redhat Esm H88
Mild python security enhancement for Red Hat Enterprise Linux 7 tackling CRLF vulnerabilities and buffer overflow risks.
An update for python is now available for Red Hat Enterprise Linux 7

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-urllib3: CRLF injection via HTTP request method (CVE-2020-26137)
* 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.

Topics%20covered

Topics Covered

security advisory buffer overflow security fix Red Hat Enterprise Linux moderate severity python update CRLF injection

References

https://access.redhat.com/security/cve/CVE-2020-26116 https://access.redhat.com/security/cve/CVE-2020-26137 https://access.redhat.com/security/cve/CVE-2021-3177 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: python-2.7.5-92.el7_9.src.rpm
x86_64: python-2.7.5-92.el7_9.x86_64.rpm python-debuginfo-2.7.5-92.el7_9.i686.rpm python-debuginfo-2.7.5-92.el7_9.x86_64.rpm python-libs-2.7.5-92.el7_9.i686.rpm python-libs-2.7.5-92.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: python-debug-2.7.5-92.el7_9.x86_64.rpm python-debuginfo-2.7.5-92.el7_9.x86_64.rpm python-devel-2.7.5-92.el7_9.x86_64.rpm python-test-2.7.5-92.el7_9.x86_64.rpm python-tools-2.7.5-92.el7_9.x86_64.rpm tkinter-2.7.5-92.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: python-2.7.5-92.el7_9.src.rpm
x86_64: python-2.7.5-92.el7_9.x86_64.rpm python-debuginfo-2.7.5-92.el7_9.i686.rpm python-debuginfo-2.7.5-92.el7_9.x86_64.rpm python-devel-2.7.5-92.el7_9.x86_64.rpm python-libs-2.7.5-92.el7_9.i686.rpm python-libs-2.7.5-92.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: python-debug-2.7.5-92.el7_9.x86_64.rpm python-debuginfo-2.7.5-92.el7_9.x86_64.rpm python-test-2.7.5-92.el7_9.x86_64.rpm python-tools-2.7.5-92.el7_9.x86_64.rpm tkinter-2.7.5-92.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: python-2.7.5-92.el7_9.src.rpm
ppc64: python-2.7.5-92.el7_9.ppc64.rpm python-debuginfo-2.7.5-92.el7_9.ppc.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:5235-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5235
Issue date: 2022-06-28

Topic

An update for python is now available for Red Hat Enterprise Linux 7.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 buffer overflow security fix Red Hat Enterprise Linux moderate severity python update CRLF injection

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

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

1883632 - CVE-2020-26137 python-urllib3: CRLF injection via HTTP request method

1896494 - FTBFS: python2 selftests [rhel-7.9.z]

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

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