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RedHat: RHSA-2020:1268-01 Moderate: Python Denial of Service Fix

red hat
Calendar Grey April 1, 2020
Dist Redhat Esm H88
Debian issues a significant patch for Perl, resolving critical vulnerabilities found in the 10.3 LTS version. Keep your systems secure!
An update for python is now available for Red Hat Enterprise Linux 7.5 Extended Update Support

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: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib (CVE-2018-1061)
* 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)
* python: DOS via regular expression catastrophic backtracking in apop() method in pop3lib (CVE-2018-1060)
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 moderate security issue Red Hat update Denial of Service python

References

https://access.redhat.com/security/cve/CVE-2018-1060 https://access.redhat.com/security/cve/CVE-2018-1061 https://access.redhat.com/security/cve/CVE-2018-14647 https://access.redhat.com/security/cve/CVE-2019-9740 https://access.redhat.com/security/cve/CVE-2019-9947 https://access.redhat.com/security/cve/CVE-2019-9948 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5):
Source: python-2.7.5-74.el7_5.src.rpm
x86_64: python-2.7.5-74.el7_5.x86_64.rpm python-debuginfo-2.7.5-74.el7_5.i686.rpm python-debuginfo-2.7.5-74.el7_5.x86_64.rpm python-devel-2.7.5-74.el7_5.x86_64.rpm python-libs-2.7.5-74.el7_5.i686.rpm python-libs-2.7.5-74.el7_5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):
x86_64: python-debug-2.7.5-74.el7_5.x86_64.rpm python-debuginfo-2.7.5-74.el7_5.x86_64.rpm python-test-2.7.5-74.el7_5.x86_64.rpm python-tools-2.7.5-74.el7_5.x86_64.rpm tkinter-2.7.5-74.el7_5.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.5):
Source: python-2.7.5-74.el7_5.src.rpm
ppc64: python-2.7.5-74.el7_5.ppc64.rpm python-debuginfo-2.7.5-74.el7_5.ppc.rpm python-debuginfo-2.7.5-74.el7_5.ppc64.rpm python-devel-2.7.5-74.el7_5.ppc64.rpm python-libs-2.7.5-74.el7_5.ppc.rpm python-libs-2.7.5-74.el7_5.ppc64.rpm
ppc64le: python-2.7.5-74.el7_5.ppc64le.rpm python-debuginfo-2.7.5-74.el7_5.ppc64le.rpm python-devel-2.7.5-74.el7_5.ppc64le.rpm python-libs-2.7.5-74.el7_5.ppc64le.rpm
s390x: python-2.7.5-74.el7_5.s390x.rpm python-debuginfo-2.7.5-74.el7_5.s390.rpm python-debuginfo-2.7.5-74.el7_5.s390x.rpm python-devel-2.7.5-74.el7_5.s390x.rpm python-libs-2.7.5-74.el7_5.s390.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:1268-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1268
Issue date: 2020-04-01

Topic

An update for python is now available for Red Hat Enterprise Linux 7.5Extended Update Support.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 security issue Red Hat update Denial of Service python

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) - x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.5) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - ppc64, ppc64le, s390x, x86_64

Bugs Fixed

1549191 - CVE-2018-1060 python: DOS via regular expression catastrophic backtracking in apop() method in pop3lib

1549192 - CVE-2018-1061 python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib

1631822 - CVE-2018-14647 python: Missing salt initialization in _elementtree.c module

1688169 - CVE-2019-9740 python: CRLF injection via the query part of the url passed to urlopen()

1695570 - CVE-2019-9948 python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms

1695572 - CVE-2019-9947 python: CRLF injection via the path part of the url passed to urlopen()

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