This update for python fixes the following issues :

Security issues fixed :

CVE-2019-5010: Fixed a denial-of-service vulnerability in the X509 certificate parser (bsc#1122191).

CVE-2018-14647: Fixed a denial-of-service vulnerability in Expat (bsc#1109847).

Non-security issue fixed: Fixed a bug where PyWeakReference struct was not initialized correctly leading to a crash (bsc#1073748).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the python packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Python's elementtree C accelerator failed to initialise     Expat's hash salt during initialization. This could     make it easy to conduct denial of service attacks     against Expat by constructing an XML document that     would cause pathological hash collisions in Expat's     internal data structures, consuming large amounts CPU     and RAM. Python 3.8, 3.7, 3.6, 3.5, 3.4, 2.7 are     believed to be vulnerable.(CVE-2018-14647)

  - An exploitable denial-of-service vulnerability exists     in the X509 certificate parser of Python.org Python     2.7.11 / 3.6.6. A specially crafted X509 certificate     can cause a NULL pointer dereference, resulting in a     denial of service. An attacker can initiate or accept     TLS connections using crafted certificates to trigger     this vulnerability.(CVE-2019-5010)

  - urllib in Python 2.x through 2.7.16 supports the     local_file: scheme, which makes it easier for remote     attackers to bypass protection mechanisms that     blacklist file: URIs, as demonstrated by triggering a     urllib.urlopen('local_file:///etc/passwd')     call.(CVE-2019-9948)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1346 advisory.

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

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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 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.

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: NULL pointer dereference using a specially crafted X509 certificate (CVE-2019-5010)

* 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.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1462 advisory.

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3725 advisory.

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

  - 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: Integer overflow in Modules/_pickle.c allows for memory exhaustion if serializing gigabytes of     data (CVE-2018-20406)

  - python: Cookie domain check returns incorrect results (CVE-2018-20852)

  - python: NULL pointer dereference using a specially crafted X509 certificate (CVE-2019-5010)

  - 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: email.utils.parseaddr wrongly parses email addresses (CVE-2019-16056)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2030 advisory.

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

  - python: NULL pointer dereference using a specially crafted X509 certificate (CVE-2019-5010)

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for python3 fixes the following issues :

CVE-2019-10160: Fixed a regression in urlparse() and urlsplit() introduced by the fix for CVE-2019-9636 (bsc#1138459).

CVE-2018-14647: Fixed a denial of service vulnerability caused by a crafted XML document (bsc#1109847).

CVE-2018-1000802: Fixed a command injection in the shutil module (bsc#1109663).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3817-1 advisory.

    It was discovered that Python incorrectly handled large amounts of data. A remote attacker could use this     issue to cause Python to crash, resulting in a denial of service, or possibly execute arbitrary code. This     issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1000030)

    It was discovered that Python incorrectly handled running external commands in the shutil module. A remote     attacker could use this issue to cause Python to crash, resulting in a denial of service, or possibly     execute arbitrary code. (CVE-2018-1000802)

    It was discovered that Python incorrectly used regular expressions vulnerable to catastrophic     backtracking. A remote attacker could possibly use this issue to cause a denial of service. This issue     only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1060, CVE-2018-1061)

    It was discovered that Python failed to initialize Expat's hash salt. A remote attacker could possibly use     this issue to cause hash collisions, leading to a denial of service. (CVE-2018-14647)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
122446	SUSE SLED12 / SLES12 Security Update : python (SUSE-SU-2019:0482-1)	Nessus	SuSE Local Security Checks	2/26/2019	6/18/2024	high
124624	EulerOS 2.0 SP5 : python (EulerOS-SA-2019-1338)	Nessus	Huawei Local Security Checks	5/6/2019	5/28/2024	critical
164608	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.11.2)	Nessus	Misc.	9/1/2022	7/10/2024	critical
135247	RHEL 7 : python (RHSA-2020:1346)	Nessus	Red Hat Local Security Checks	4/7/2020	4/28/2024	critical
128333	CentOS 7 : python (CESA-2019:2030)	Nessus	CentOS Local Security Checks	8/30/2019	4/30/2024	critical
135459	RHEL 7 : python (RHSA-2020:1462)	Nessus	Red Hat Local Security Checks	4/14/2020	4/28/2024	critical
194161	RHEL 6 / 7 : rh-python36-python (RHSA-2019:3725)	Nessus	Red Hat Local Security Checks	4/28/2024	4/28/2024	critical
127651	RHEL 7 : python (RHSA-2019:2030)	Nessus	Red Hat Local Security Checks	8/12/2019	5/7/2024	critical
128019	SUSE SLES12 Security Update : python3 (SUSE-SU-2019:2053-2)	Nessus	SuSE Local Security Checks	8/20/2019	5/2/2024	critical
118954	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Python vulnerabilities (USN-3817-1)	Nessus	Ubuntu Local Security Checks	11/14/2018	8/27/2024	critical

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