RHSA-2020:5010 - Security Advisory

Topic

An update for python3 is now available for Red Hat Enterprise Linux 7.

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 accessible, high-level, dynamically typed, interpreted programming language, designed with an emphasis on code readability. It includes an extensive standard library, and has a vast ecosystem of third-party libraries.

Security Fix(es):

• 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)

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 Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• 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

CVEs

• CVE-2019-20907
• CVE-2020-14422

References

• https://access.redhat.com/security/updates/classification/#moderate