The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3432 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3432-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Sylvain Beucler     May 24, 2023                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : python2.7     Version        : 2.7.16-2+deb10u2     CVE ID         : CVE-2015-20107 CVE-2019-20907 CVE-2020-8492 CVE-2020-26116                      CVE-2021-3177 CVE-2021-3733 CVE-2021-3737 CVE-2021-4189                      CVE-2022-45061     Debian Bug     : 970099

    Multiple security issues were discovered in Python, an interactive     high-level object-oriented language. An attacker may cause command     injection, denial of service (DoS), request smuggling and port     scanning.

    CVE-2015-20107

        The mailcap module does not add escape characters into commands         discovered in the system mailcap file. This may allow attackers to         inject shell commands into applications that call         mailcap.findmatch with untrusted input (if they lack validation of         user-provided filenames or arguments).

    CVE-2019-20907

        In Lib/tarfile.py, an attacker is able to craft a TAR archive         leading to an infinite loop when opened by tarfile.open, because
        _proc_pax lacks header validation.

    CVE-2020-8492

        Python allows an HTTP server to conduct Regular Expression Denial         of Service (ReDoS) attacks against a client because of         urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

    CVE-2020-26116

        http.client allows CRLF injection if the attacker controls the         HTTP request method, as demonstrated by inserting CR and LF         control characters in the first argument of         HTTPConnection.request.

    CVE-2021-3177

        Python has a buffer overflow in PyCArg_repr in _ctypes/callproc.c,         which may lead to remote code execution in certain Python         applications that accept floating-point numbers as untrusted         input, as demonstrated by a 1e300 argument to         c_double.from_param. This occurs because sprintf is used unsafely.

    CVE-2021-3733

        There's a flaw in urllib's AbstractBasicAuthHandler class. An         attacker who controls a malicious HTTP server that an HTTP client         (such as web browser) connects to, could trigger a Regular         Expression Denial of Service (ReDOS) during an authentication         request with a specially crafted payload that is sent by the         server to the client.

    CVE-2021-3737

        An improperly handled HTTP response in the HTTP client code of         python may allow a remote attacker, who controls the HTTP server,         to make the client script enter an infinite loop, consuming CPU         time.

    CVE-2021-4189

        The FTP (File Transfer Protocol) client library in PASV (passive)         mode trusts the host from the PASV response by default. This flaw         allows an attacker to set up a malicious FTP server that can trick         FTP clients into connecting back to a given IP address and         port. This vulnerability could lead to FTP client scanning         ports. For the rare user who wants the previous behavior, set a         `trust_server_pasv_ipv4_address` attribute on your `ftplib.FTP`         instance to True.

    CVE-2022-45061

        An unnecessary quadratic algorithm exists in one path when         processing some inputs to the IDNA (RFC 3490) decoder, such that a         crafted, unreasonably long name being presented to the decoder         could lead to a CPU denial of service.

    For Debian 10 buster, these problems have been fixed in version     2.7.16-2+deb10u2.

    We recommend that you upgrade your python2.7 packages.

    For the detailed security status of python2.7 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/python2.7

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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 Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5083-1 advisory.

    It was discovered that Python incorrectly handled certain RFCs. An attacker could possibly use this issue     to cause a denial of service. This issue only affected Ubuntu 16.04 ESM. (CVE-2021-3733)

    It was discovered that Python incorrectly handled certain server responses. An attacker could possibly use     this issue to cause a denial of service. (CVE-2021-3737)

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.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3486-1 advisory.

    - Update to 3.6.15:
    - CVE-2021-3737: Fixed a DoS caused by infinitely reading potential HTTP headers after a 100 Continue     status response from the server. (bsc#1189241)
    - CVE-2021-3426: Fixed an information disclosure via pydoc. (bsc#1183374)
    - CVE-2021-3733: Fixed a ReDoS in urllib.request. (bsc#1189287)

Tenable has extracted the preceding description block directly from the SUSE 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 CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:4057 advisory.

  - python: urllib: Regular expression DoS in AbstractBasicAuthHandler (CVE-2021-3733)

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

The remote SUSE Linux SLED15 / SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:4015-1 advisory.

    - CVE-2021-3737: Fixed http client infinite line reading (DoS) after a http 100. (bsc#1189241)
    - CVE-2021-3733: Fixed ReDoS in urllib.request. (bsc#1189287)
    - CVE-2021-3426: Fixed an information disclosure via pydoc. (bsc#1183374)

    - Rebuild to get new headers, avoid building in support for stropts.h (bsc#1187338).

Tenable has extracted the preceding description block directly from the SUSE 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 python2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may     allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop,     consuming CPU time. The highest threat from this vulnerability is to system availability. (CVE-2021-3737)

  - There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP     server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of     Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the     server to the client. The greatest threat that this flaw poses is to application availability.
    (CVE-2021-3733)

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.

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

  - A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may     allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop,     consuming CPU time. The highest threat from this vulnerability is to system availability. (CVE-2021-3737)

  - There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP     server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of     Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the     server to the client. The greatest threat that this flaw poses is to application availability.
    (CVE-2021-3733)

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 AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:4057 advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:1764 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.

    The following packages have been upgraded to a later upstream version: python38 (3.8), python38-devel     (3.8). (BZ#1997680, BZ#1997860)

    Security Fix(es):

    * python: urllib: Regular expression DoS in AbstractBasicAuthHandler (CVE-2021-3733)

    * python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through (CVE-2021-43818)

    * python: urllib.parse does not sanitize URLs containing ASCII newline and tabs (CVE-2022-0391)

    * python: urllib: HTTP client possible infinite loop on a 100 Continue response (CVE-2021-3737)

    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 8.6 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.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2022:1764 advisory.

    * python: urllib: Regular expression DoS in AbstractBasicAuthHandler (CVE-2021-3733)

    * python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through (CVE-2021-43818)

    * python: urllib.parse does not sanitize URLs containing ASCII newline and tabs (CVE-2022-0391)

    * python: urllib: HTTP client possible infinite loop on a 100 Continue response (CVE-2021-3737)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 version of python installed on the remote host is prior to 2.7.18-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1802 advisory.

    In Python3's Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.
    (CVE-2020-27619)

    The package python/cpython is vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and     urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query     parameters using a semicolon (;), they can cause a difference in the interpretation of the request between     the proxy (running with default configuration) and the server. This can result in malicious requests being     cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and     therefore would not include it in a cache key of an unkeyed parameter. (CVE-2021-23336)

    There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP     server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of     Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the     server to the client. The greatest threat that this flaw poses is to application availability.
    (CVE-2021-3733)

    A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may     allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop,     consuming CPU time. The highest threat from this vulnerability is to system availability. (CVE-2021-3737)

    ftplib should not use the host from the PASV response (CVE-2021-4189)

    A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform     Resource Locator (URL) strings into components. The issue involves how the urlparse method does not     sanitize input and allows characters like r and n in the URL path. This flaw allows an attacker to input a     crafted URL, leading to injection attacks. (CVE-2022-0391)

Tenable has extracted the preceding description block directly from the tested product 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 version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0192 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2021-3426:
      There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince     another local or adjacent user to start a pydoc server could access the server and use it to disclose     sensitive information belonging to the other user that they would not normally be able to access. The     highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9,     Python versions before 3.9.3 and Python versions before 3.10.0a7.

      CVE-2021-3733:
      There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP     server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of     Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the     server to the client. The greatest threat that this flaw poses is to application availability.

      CVE-2021-3737:
      A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may     allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop,     consuming CPU time. The highest threat from this vulnerability is to system availability.

      CVE-2021-29921:
      In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP     address string. This (in some situations) allows attackers to bypass access control that is based on IP     addresses.

Tenable has extracted the preceding description block directly from the Tencent 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 MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2022-3598:01 advisory.

    * python: urllib: Regular expression DoS in AbstractBasicAuthHandler     (CVE-2021-3733)
      * python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass     through (CVE-2021-43818)
      * python: urllib.parse does not sanitize URLs containing ASCII newline and     tabs (CVE-2022-0391)
      * python: urllib: HTTP client possible infinite loop on a 100 Continue     response (CVE-2021-3737)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0261 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2019-11236:
    In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the     request parameter.

    CVE-2019-11324:
    The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA     certificates is different from the OS store of CA certificates, which results in SSL connections     succeeding in situations where a verification failure is the correct outcome. This is related to use of     the ssl_context, ca_certs, or ca_certs_dir argument.

    CVE-2019-16056:
    An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x     through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An     application that uses the email module and implements some kind of checks on the From/To headers of a     message could be tricked into accepting an email address that should be denied. An attack may be the same     as in CVE-2019-11340; however, this CVE applies to Python more generally.

    CVE-2019-16935:
    The documentation XML-RPC server in Python through 2.7.16, 3.x through 3.6.9, and 3.7.x through 3.7.4 has     XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in     Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary     JavaScript can be delivered to clients that visit the http URL for this server.

    CVE-2019-6446:
    An issue was discovered in NumPy 1.16.0 and earlier. It uses the pickle Python module unsafely, which     allows remote attackers to execute arbitrary code via a crafted serialized object, as demonstrated by a     numpy.load call. NOTE: third parties dispute this issue because it is  a behavior that might have     legitimate applications in (for example)  loading serialized Python object arrays from trusted and     authenticated  sources

    CVE-2019-7164:
    SQLAlchemy through 1.2.17 and 1.3.x through 1.3.0b2 allows SQL Injection via the order_by parameter.

    CVE-2019-7548:
    SQLAlchemy 1.2.17 has SQL Injection when the group_by parameter can be controlled.

    CVE-2019-9636:
    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.
    This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8,     v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1;
    v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1,     v3.7.8, v3.7.8rc1, v3.7.9.

    CVE-2019-9740:
    An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
    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. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10,     v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12,     v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1,     v3.7.8, v3.7.8rc1, v3.7.9.

    CVE-2019-9947:
    An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
    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.
    This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1,     v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4,     v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

    CVE-2019-9948:
    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-2020-26137:
    urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as     demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this     is similar to CVE-2020-26116.

    CVE-2020-27619:
    In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content     retrieved via HTTP.

    CVE-2020-27783:
    A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly     imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote     attacker could exploit this flaw to run arbitrary HTML/JS code.

    CVE-2020-28493:
    This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the     `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most     exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format     user content instead of the urlize filter, or by implementing request timeouts and limiting process     memory.

    CVE-2021-20095:
    A flaw was found in python-babel. A path traversal vulnerability was found in how locale data files are     checked and loaded within python-babel, allowing a local attacker to trick an application that uses     python-babel to load a file outside of the intended locale directory. The highest threat from this     vulnerability is to data confidentiality and integrity as well as service availability.

    CVE-2021-23336:
    The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before     3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and     urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query     parameters using a semicolon (;), they can cause a difference in the interpretation of the request between     the proxy (running with default configuration) and the server. This can result in malicious requests being     cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and     therefore would not include it in a cache key of an unkeyed parameter.

    CVE-2021-28957:
    An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling     the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute     allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS     code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.

    CVE-2021-3177:
    Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to     remote code execution in certain Python applications that accept floating-point numbers as untrusted     input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used     unsafely.

    CVE-2021-3733:
    There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP     server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of     Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the     server to the client. The greatest threat that this flaw poses is to application availability.

    CVE-2021-3737:
    A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may     allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop,     consuming CPU time. The highest threat from this vulnerability is to system availability.

    CVE-2021-4189:
    A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV     (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This     flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back     to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which     otherwise would not have been possible.

    CVE-2021-42771:
    Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing     serialized Python objects) via directory traversal, leading to code execution.

    CVE-2021-43818:
    lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML     Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG     files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should     upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

    CVE-2022-0391:
    A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform     Resource Locator (URL) strings into components. The issue involves how the urlparse method does not     sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to     input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1,     3.9.5, 3.8.11, 3.7.11 and 3.6.14.

    CVE-2022-45061:
    An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path     when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name     being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by     remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger     excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname.
    For example, the attack payload could be placed in the Location header of an HTTP response with status     code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.

Tenable has extracted the preceding description block directly from the Alibaba Cloud 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
176347	Debian dla-3432 : idle-python2.7 - security update	Nessus	Debian Local Security Checks	2023/5/25	2025/1/22	critical
153448	Ubuntu 16.04 ESM : Python vulnerabilities (USN-5083-1)	Nessus	Ubuntu Local Security Checks	2021/9/16	2025/9/3	high
154302	SUSE SLES12 Security Update : python36 (SUSE-SU-2021:3486-1)	Nessus	SuSE Local Security Checks	2021/10/21	2026/6/26	medium
154877	CentOS 8 : python3 (CESA-2021:4057)	Nessus	CentOS Local Security Checks	2021/11/3	2023/11/27	medium
156050	SUSE SLED15 / SLES15 Security Update : python3 (SUSE-SU-2021:4015-1)	Nessus	SuSE Local Security Checks	2021/12/14	2026/6/26	medium
156299	EulerOS 2.0 SP8 : python2 (EulerOS-SA-2021-2812)	Nessus	Huawei Local Security Checks	2021/12/25	2023/11/22	high
156354	EulerOS Virtualization 3.0.2.0 : python (EulerOS-SA-2021-2825)	Nessus	Huawei Local Security Checks	2021/12/29	2023/11/21	high
157542	AlmaLinux 8 : python3 (ALSA-2021:4057)	Nessus	Alma Linux Local Security Checks	2022/2/9	2023/11/13	medium
161019	RHEL 8 : python38:3.8 and python38-devel:3.8 (RHSA-2022:1764)	Nessus	Red Hat Local Security Checks	2022/5/11	2025/3/15	high
161112	AlmaLinux 8 : python38:3.8 and python38-devel:3.8 (ALSA-2022:1764)	Nessus	Alma Linux Local Security Checks	2022/5/12	2025/1/13	high
161936	Amazon Linux 2 : python (ALAS-2022-1802)	Nessus	Amazon Linux Local Security Checks	2022/6/7	2024/12/11	critical
239882	TencentOS Server 3: python38 (TSSA-2022:0192)	Nessus	Tencent Local Security Checks	2025/6/16	2025/12/5	critical
293947	MiracleLinux 8 : python38:3.8 and python38-devel:3.8 (AXSA:2022-3598:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	medium
236272	Alibaba Cloud Linux 3 : 0261: Moderate: python27:2.7 (ALINUX3-SA-2024:0261)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/9/23	critical

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