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 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.

  - 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-2021-3426)

  - 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)

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

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-4057 advisory.

    [3.6.8-39.0.1]
    - Add Oracle Linux distribution in platform.py [Orabug: 20812544]

    [3.6.8-39]
    - Security fix for CVE-2021-3733: Denial of service when identifying crafted invalid RFCs     Resolves: rhbz#1995234

Tenable has extracted the preceding description block directly from the Oracle Linux security 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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:1821 advisory.

  - 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)

  - 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-2021-4189)

  - 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-2021-43818)

  - 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-2022-0391)

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-2022:1821 advisory.

  - 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-2021-43818)

  - 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)

  - 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-2021-4189)

  - 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 ' ' 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-2022-0391)

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 SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3489-1 advisory.

  - 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)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-4160 advisory.

    - Security fix for CVE-2021-28957     Resolves: rhbz#1941534
    - Fixes CVE-2020-27783 and another vulnerability in the HTML Cleaner
    - Fix for CVE-2021-33503 Catastrophic backtracking in URL authority parser     Resolves: rhbz#1968074
    - Fix CVE-2021-29921: Improper input validation of octal strings in the ipaddress module     Resolves: rhbz#1957458
    - Security fix for CVE-2021-3426: information disclosure via pydoc     Resolves: rhbz#1935913

    python3x-pip
    - Fix for CVE-2021-33503 Catastrophic backtracking in URL authority parser     Resolves: rhbz#1968074
    - Fix for CVE-2021-3572 - pip incorrectly handled unicode separators in git references     Resolves: rhbz#1962856

Tenable has extracted the preceding description block directly from the Oracle 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 Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5199-1 advisory.

    It was discovered that the urllib.request.AbstractBasicAuthHandler class

    in Python contains regex with a quadratic worst-case time complexity.

    Specially crafted traffic from a malicious HTTP server could cause a regular

    expression denial of service (ReDoS) condition for a client. (CVE-2021-3733)

    It was discovered that the Python urllib http client could enter into an infinite

    loop when incorrectly handling certain server responses (100 Continue response).

    Specially crafted traffic from a malicious HTTP server could cause a denial of

    service (DoS) condition for a client. (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 Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5200-1 advisory.

    It was discovered that the urllib.request.AbstractBasicAuthHandler class

    in Python contains regex allowing for catastrophic backtracking. Specially

    crafted traffic from a malicious HTTP server could cause a regular expression

    denial of service (ReDoS) condition for a client. (CVE-2020-8492)

    It was discovered that the urllib.request.AbstractBasicAuthHandler class

    in Python contains regex with a quadratic worst-case time complexity.

    Specially crafted traffic from a malicious HTTP server could cause a regular

    expression denial of service (ReDoS) condition for a client. (CVE-2021-3733)

    It was discovered that the Python urllib http client could enter into an infinite

    loop when incorrectly handling certain server responses (100 Continue response).

    Specially crafted traffic from a malicious HTTP server could cause a denial of

    service (DoS) condition for a client. (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 SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1418-1 advisory.

  - Denial of service when identifying crafted invalid RFCs [fedora-all] (CVE-2021-3733)

  - client can enter an infinite loop on a 100 Continue response from the server [fedora-all] (CVE-2021-3737)

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

ID	Name	Product	Family	Published	Updated	Severity
157542	AlmaLinux 8 : python3 (ALSA-2021:4057)	Nessus	Alma Linux Local Security Checks	2/9/2022	11/13/2023	medium
154302	SUSE SLES12 Security Update : python36 (SUSE-SU-2021:3486-1)	Nessus	SuSE Local Security Checks	10/21/2021	7/13/2023	medium
154848	Oracle Linux 8 : python3 (ELSA-2021-4057)	Nessus	Oracle Linux Local Security Checks	11/2/2021	10/22/2024	medium
184762	Rocky Linux 8 : python27:2.7 (RLSA-2022:1821)	Nessus	Rocky Linux Local Security Checks	11/6/2023	11/14/2023	high
161115	AlmaLinux 8 : python27:2.7 (ALSA-2022:1821)	Nessus	Alma Linux Local Security Checks	5/12/2022	10/27/2023	high
154303	SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2021:3489-1)	Nessus	SuSE Local Security Checks	10/21/2021	7/13/2023	high
155967	Oracle Linux 8 : python39:3.9 / and / python39-devel:3.9 (ELSA-2021-4160)	Nessus	Oracle Linux Local Security Checks	12/10/2021	11/2/2024	critical
156168	Ubuntu 18.04 LTS : Python vulnerabilities (USN-5199-1)	Nessus	Ubuntu Local Security Checks	12/18/2021	8/27/2024	high
156171	Ubuntu 18.04 LTS : Python vulnerabilities (USN-5200-1)	Nessus	Ubuntu Local Security Checks	12/18/2021	8/27/2024	high
154765	openSUSE 15 Security Update : python (openSUSE-SU-2021:1418-1)	Nessus	SuSE Local Security Checks	11/1/2021	11/27/2023	high

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