Synopsis

Moderate: rh-python38 security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for rh-python38-python, rh-python38-python-psutil, and rh-python38-python-urllib3 is now available for Red Hat Software Collections.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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.

The following packages have been upgraded to a later upstream version: rh-python38-python (3.8.6). (BZ#1885289)

Security Fix(es):

• python-psutil: double free because of refcount mishandling (CVE-2019-18874)
• python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)
• python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422)
• 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)

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.

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

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.7 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.7 ppc64le
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.6 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.6 ppc64le
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7 ppc64le
• Red Hat Software Collections (for RHEL Server for ARM) 1 aarch64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64

Fixes

• BZ - 1772014 - CVE-2019-18874 python-psutil: double free because of refcount mishandling
• BZ - 1854926 - CVE-2020-14422 python: DoS via inefficiency in IPv{4,6}Interface classes
• BZ - 1856481 - CVE-2019-20907 python: infinite loop in the tarfile module via crafted TAR archive
• BZ - 1883014 - CVE-2020-26116 python: CRLF injection via HTTP request method in httplib/http.client
• BZ - 1883632 - CVE-2020-26137 python-urllib3: CRLF injection via HTTP request method
• BZ - 1885289 - Update the python 3.8 interpreter to its latest bugfix release 3.8.6

CVEs

• CVE-2019-18874
• CVE-2019-20907
• CVE-2020-14422
• CVE-2020-26116
• CVE-2020-26137

References