Moderate: python security update

Synopsis

Moderate: python security update

Type/Severity

Security Advisory: Moderate

Topic

An update for python is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

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.

Security Fix(es):

• python: Missing salt initialization in _elementtree.c module (CVE-2018-14647)
  
• python: CRLF injection via the query part of the url passed to urlopen() (CVE-2019-9740)
  
• python: CRLF injection via the path part of the url passed to urlopen() (CVE-2019-9947)
  
• python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms (CVE-2019-9948)
  

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 for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x

Fixes

• BZ - 1631822 - CVE-2018-14647 python: Missing salt initialization in _elementtree.c module
• BZ - 1688169 - CVE-2019-9740 python: CRLF injection via the query part of the url passed to urlopen()
• BZ - 1695570 - CVE-2019-9948 python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms
• BZ - 1695572 - CVE-2019-9947 python: CRLF injection via the path part of the url passed to urlopen()

CVEs

• CVE-2018-14647
• CVE-2019-9740
• CVE-2019-9947
• CVE-2019-9948

References

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