An update of the python3 package has been released.

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 contructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM.(CVE-2018-14647)

Security fix for CVE-2018-14647

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

Multiple vulnerabilities were discovered in Python, an interactive high-level object-oriented language, including 

CVE-2018-14647

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.

CVE-2019-5010

NULL pointer dereference using a specially crafted X509 certificate.

CVE-2019-9636

Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization resulting in information disclosure (credentials, cookies, etc. that are cached against a given hostname).
A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly.

CVE-2019-9740

An issue was discovered in urllib2 where CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the query string after a ? character) followed by an HTTP header or a Redis command.

CVE-2019-9947

An issue was discovered in urllib2 where CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue.

CVE-2019-9948

urllib 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-2019-10160

A security regression of CVE-2019-9636 was discovered which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other kind of information, it is possible for an attacker to provide specially crafted URLs to make the application locate host-related information (e.g. cookies, authentication data) and send them to a different host than where it should, unlike if the URLs had been correctly parsed.
The result of an attack may vary based on the application.

For Debian 8 'Jessie', these problems have been fixed in version 2.7.9-2+deb8u3.

We recommend that you upgrade your python2.7 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA 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-2020:1462 advisory.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Fedora 30 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2019-0c91ce7b3c advisory.

    Update legacy Python to 2.7.16. Most significant improvement is that is builds against OpenSSL 1.1.1. See     [upstream release announcement](https://www.python.org/downloads/release/python-2716/) and     [changelog](https://github.com/python/cpython/blob/2.7/Misc/NEWS.d/2.7.16.rst) (+ [rc1     changelog](https://github.com/python/cpython/blob/2.7/Misc/NEWS.d/2.7.16rc1.rst)).

    Fixes the following CVEs:

     * [CVE-2019-5010](https://access.redhat.com/security/cve/cve-2019-5010) Fix a NULL pointer deref in ssl     module. The cert parser did not handle CRL distribution points with empty DP or URI correctly. A malicious     or buggy certificate can result into segfault. Vulnerability (TALOS-2018-0758) reported by Colin Read and     Nicolas Edet of Cisco.
     * [CVE-2013-1752](https://access.redhat.com/security/cve/cve-2013-1752): Change use of readline() in     `imaplib.IMAP4_SSL` to limit line length.

    ([CVE-2018-14647](https://access.redhat.com/security/cve/cve-2018-14647) is listed in upstream changelog,     but it was already backported in Fedora.)

    Note that Python 2 is deprecated in Fedora 30 and users are advised to switch to Python 3. Upstream     support of Python 2 ends on 2020-01-01.


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

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

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-2019:2030 advisory.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

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)

Multiple security issues were discovered in Python: ElementTree failed to initialise Expat's hash salt, two denial of service issues were found in difflib and poplib and a buffer overflow in PyString_DecodeEscape.

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

  - It was found that Python's smtplib library did not     return an exception when StartTLS failed to be     established in the SMTP.starttls() function. A man in     the middle attacker could strip out the STARTTLS     command without generating an exception on the Python     SMTP client application, preventing the establishment     of the TLS layer.(CVE-2016-0772)

  - A vulnerability was discovered in Python, in the     built-in zipimporter. A specially crafted zip file     placed in a module path such that it would be loaded by     a later 'import' statement could cause a heap overflow,     leading to arbitrary code execution.(CVE-2016-5636)

  - A flaw was found in the way the DES/3DES cipher was     used as part of the TLS/SSL protocol. A     man-in-the-middle attacker could use this flaw to     recover some plaintext data by capturing large amounts     of encrypted traffic between TLS/SSL server and client     if the communication used a DES/3DES based     ciphersuite.(CVE-2016-2183)

  - The Python standard library HTTP client modules (such     as httplib or urllib) did not perform verification of     TLS/SSL certificates when connecting to HTTPS servers.
    A man-in-the-middle attacker could use this flaw to     hijack connections and eavesdrop or modify transferred     data.(CVE-2014-9365)

  - An integer overflow flaw was found in the way the     buffer() function handled its offset and size     arguments. An attacker able to control those arguments     could use this flaw to disclose portions of the     application memory or cause it to crash.(CVE-2014-7185)

  - A flaw was found in the way catastrophic backtracking     was implemented in python's pop3lib's apop() method. An     attacker could use this flaw to cause denial of     service.(CVE-2018-1060)

  - The ssl.match_hostname function in the SSL module in     Python 2.6 through 3.4 does not properly handle a '\\0'     character in a domain name in the Subject Alternative     Name field of an X.509 certificate, which allows     man-in-the-middle attackers to spoof arbitrary SSL     servers via a crafted certificate issued by a     legitimate Certification Authority, a related issue to     CVE-2009-2408.(CVE-2013-4238)

  - It was found that the Python's httplib library (used by     urllib, urllib2 and others) did not properly check     HTTPConnection.putheader() function arguments. An     attacker could use this flaw to inject additional     headers in a Python application that allowed user     provided header names or values.(CVE-2016-5699)

  - CPython (aka Python) up to 2.7.13 is vulnerable to an     integer overflow in the PyString_DecodeEscape function     in stringobject.c, resulting in heap-based buffer     overflow (and possible arbitrary code     execution)(CVE-2017-1000158)

  - A flaw was found in the way catastrophic backtracking     was implemented in python's difflib.IS_LINE_JUNK     method. An attacker could use this flaw to cause denial     of service.(CVE-2018-1061)

  - It was discovered that multiple Python standard library     modules implementing network protocols (such as httplib     or smtplib) failed to restrict sizes of server     responses. A malicious server could cause a client     using one of the affected modules to consume an     excessive amount of memory.(CVE-2013-1752)

  - A flaw was found in the way the json module handled     negative index argument passed to certain functions     (such as raw_decode()). An attacker able to control     index value passed to one of the affected functions     could possibly use this flaw to disclose portions of     the application memory.(CVE-2014-4616)

  - 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)

  - 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 contructing an XML document that would     cause pathological hash collisions in Expat's internal     data structures, consuming large amounts CPU and     RAM.(CVE-2018-14647)

  - A null pointer dereference vulnerability was found in     the certificate parsing code in Python. This causes a     denial of service to applications when parsing     specially crafted certificates. This vulnerability is     unlikely to be triggered if application enables SSL/TLS     certificate validation and accepts certificates only     from trusted root certificate     authorities.(CVE-2019-5010)

  - Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is     affected by: Improper Handling of Unicode Encoding     (with an incorrect netloc) during NFKC normalization.
    The impact is: Information disclosure (credentials,     cookies, etc. that are cached against a given     hostname). The components are: urllib.parse.urlsplit,     urllib.parse.urlparse. The attack vector is: A     specially crafted URL could be incorrectly parsed to     locate cookies or authentication data and send that     information to a different host than when parsed     correctly.(CVE-2019-9636)

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.

This update for python fixes the following issues :

Updated to version 2.7.17 to unify packages among openSUSE:Factory and SLE versions (bsc#1159035).

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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
202827	Photon OS 2.0: Python3 PHSA-2019-2.0-0120	Nessus	PhotonOS Local Security Checks	2024/7/22	2024/7/22	high
118805	Amazon Linux AMI : python35 (ALAS-2018-1101)	Nessus	Amazon Linux Local Security Checks	2018/11/8	2024/7/25	high
119786	Amazon Linux 2 : python3 (ALAS-2018-1132)	Nessus	Amazon Linux Local Security Checks	2018/12/20	2024/7/15	high
118241	Fedora 27 : python2 (2018-b6de5fc905)	Nessus	Fedora Local Security Checks	2018/10/22	2024/7/30	high
120315	Fedora 28 : python2 (2018-2bf852f063)	Nessus	Fedora Local Security Checks	2019/1/3	2024/7/8	high
118409	Fedora 27 : python26 (2018-14526cbebe)	Nessus	Fedora Local Security Checks	2018/10/26	2024/7/29	high
126222	Debian DLA-1834-1 : python2.7 security update	Nessus	Debian Local Security Checks	2019/6/25	2024/5/14	critical
135459	RHEL 7 : python (RHSA-2020:1462)	Nessus	Red Hat Local Security Checks	2020/4/14	2024/11/7	critical
124470	Fedora 30 : python2 / python2-docs (2019-0c91ce7b3c)	Nessus	Fedora Local Security Checks	2019/5/2	2025/8/29	high
124624	EulerOS 2.0 SP5 : python (EulerOS-SA-2019-1338)	Nessus	Huawei Local Security Checks	2019/5/6	2024/5/28	critical
127651	RHEL 7 : python (RHSA-2019:2030)	Nessus	Red Hat Local Security Checks	2019/8/12	2024/11/6	critical
128254	Scientific Linux Security Update : python on SL7.x x86_64 (20190806)	Nessus	Scientific Linux Local Security Checks	2019/8/27	2024/5/1	critical
117838	Debian DSA-4307-1 : python3.5 - security update	Nessus	Debian Local Security Checks	2018/10/1	2024/8/1	critical
124937	EulerOS Virtualization 3.0.1.0 : python (EulerOS-SA-2019-1434)	Nessus	Huawei Local Security Checks	2019/5/14	2024/5/23	critical
133259	SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2020:0234-1) (BEAST) (httpoxy)	Nessus	SuSE Local Security Checks	2020/1/27	2024/3/28	critical

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