The remote CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:2081 advisory.

  - The Requests package before 2.20.0 for Python sends an HTTP Authorization header to an http URI upon     receiving a same-hostname https-to-http redirect, which makes it easier for remote attackers to discover     credentials by sniffing the network. (CVE-2018-18074)

  - urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin     redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the     Authorization header to be exposed to unintended hosts or transmitted in cleartext. (CVE-2018-20060)

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

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 AOS installed on the remote host is prior to 5.16. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.16 advisory.

  - Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow     can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels,     assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass     invalid utf-8 strings to functions like pango_itemize. (CVE-2019-1010238)

  - curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal     function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how     large temporary storage area to allocate from the heap. The length value is then subsequently used to     iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit     size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31     bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the     intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is     almost identical to CVE-2017-8816.) (CVE-2018-14618)

  - An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can     send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed     later on, leading to DoS (segmentation fault). (CVE-2018-14598)

  - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable     to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other     impact. (CVE-2018-14599)

  - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a     variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading     to DoS or remote code execution. (CVE-2018-14600)

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 AOS installed on the remote host is prior to 5.16.1.3. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.16.1.3 advisory.

  - When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to     Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP     connection. If such connections are available to an attacker, they can be exploited in ways that may be     surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped     with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected     (and recommended in the security guide) that this Connector would be disabled if not required. This     vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the     web application - processing any file in the web application as a JSP Further, if the web application     allowed file upload and stored those files within the web application (or the attacker was able to control     the content of the web application by some other means) then this, along with the ability to process a     file as a JSP, made remote code execution possible. It is important to note that mitigation is only     required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth     approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to     Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP     Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading     to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.
    (CVE-2020-1938)

  - rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a     certain upper-bound check, leading to a buffer overflow. (CVE-2019-17666)

  - The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-     free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,     include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can     occur with FUSE requests. (CVE-2019-11487)

  - A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where,     the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error     occurs. When a guest is running on a host CPU affected by the TAA flaw (TAA_NO=0), but is not affected by     the MDS issue (MDS_NO=1), the guest was to clear the affected buffers by using a VERW instruction     mechanism. But when the MDS_NO=1 bit was exported to the guests, the guests did not use the VERW mechanism     to clear the affected buffers. This issue affects guests running on Cascade Lake CPUs and requires that     host has 'TSX' enabled. Confidentiality of data is the highest threat associated with this vulnerability.
    (CVE-2019-19338)

  - The Requests package before 2.20.0 for Python sends an HTTP Authorization header to an http URI upon     receiving a same-hostname https-to-http redirect, which makes it easier for remote attackers to discover     credentials by sniffing the network. (CVE-2018-18074)

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 AOS installed on the remote host is prior to 5.11.2. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.11.2 advisory.

  - Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow     can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels,     assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass     invalid utf-8 strings to functions like pango_itemize. (CVE-2019-1010238)

  - curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal     function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how     large temporary storage area to allocate from the heap. The length value is then subsequently used to     iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit     size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31     bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the     intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is     almost identical to CVE-2017-8816.) (CVE-2018-14618)

  - An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can     send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed     later on, leading to DoS (segmentation fault). (CVE-2018-14598)

  - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable     to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other     impact. (CVE-2018-14599)

  - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a     variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading     to DoS or remote code execution. (CVE-2018-14600)

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 AOS installed on the remote host is prior to 5.15.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.15.1 advisory.

  - rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a     certain upper-bound check, leading to a buffer overflow. (CVE-2019-17666)

  - libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow. (CVE-2020-5312)

  - An issue was discovered in Pillow before 6.2.0. When reading specially crafted invalid image files, the     library can either allocate very large amounts of memory or take an extremely long period of time to     process the image. (CVE-2019-16865)

  - The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-     free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,     include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can     occur with FUSE requests. (CVE-2019-11487)

  - A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where,     the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error     occurs. When a guest is running on a host CPU affected by the TAA flaw (TAA_NO=0), but is not affected by     the MDS issue (MDS_NO=1), the guest was to clear the affected buffers by using a VERW instruction     mechanism. But when the MDS_NO=1 bit was exported to the guests, the guests did not use the VERW mechanism     to clear the affected buffers. This issue affects guests running on Cascade Lake CPUs and requires that     host has 'TSX' enabled. Confidentiality of data is the highest threat associated with this vulnerability.
    (CVE-2019-19338)

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-urllib3: Cross-host redirect does not remove     Authorization header allow for credential exposure     (CVE-2018-20060)

  - python-urllib3: CRLF injection due to not encoding the     '\r\n' sequence leading to possible attack on internal     service (CVE-2019-11236)

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-0851 advisory.

    [15.1.0-4]
    - Bump     Resolves: rhbz#1649153     Resolves: rhbz#1700824     Resolves: rhbz#1643829

    [15.1.0-3]
    - Add three new patches for CVEs in bundled urllib3 and requests     CVE-2018-20060, CVE-2019-11236, CVE-2018-18074     Resolves: rhbz#1649153     Resolves: rhbz#1700824     Resolves: rhbz#1643829

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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1916 advisory.

    pip is a package management system used to install and manage software packages written in Python. Many     packages can be found in the Python Package Index (PyPI). pip is a recursive acronym that can stand for     either Pip Installs Packages or Pip Installs Python.

    Security Fix(es):

    * python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure     (CVE-2018-20060)

    * python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on     internal service (CVE-2019-11236)

    * python-urllib3: Certification mishandle when error should be thrown (CVE-2019-11324)

    * python-requests: Redirect from HTTPS to HTTP does not remove Authorization header (CVE-2018-18074)

    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 8.2 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 MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2020-969:01 advisory.

    * python-urllib3: Cross-host redirect does not remove Authorization header allow     for credential exposure (CVE-2018-20060)
    * python: Cookie domain check returns incorrect results (CVE-2018-20852)
    * python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading     to possible attack on internal service (CVE-2019-11236)
    * python-urllib3: Certification mishandle when error should be thrown     (CVE-2019-11324)
    * python: email.utils.parseaddr wrongly parses email addresses (CVE-2019-16056)
    * python-requests: Redirect from HTTPS to HTTP does not remove Authorization     header (CVE-2018-18074)     Modularity name: python27     Stream name: 2.7

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.

- Fix an issue similar to CVE-2018-20060 where the     authorization header was removed only when the case     matched. 

  - Fix an issue where the system CA bundle was loaded even     when an alternate bundle was explicitly specified     (https://www.openwall.com/lists/oss-security/2019/04/17/     3)

Full changelog at:
https://github.com/urllib3/urllib3/blob/1.24.2/CHANGES.rst

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.

According to the version of the python-urllib3 package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - urllib3 before version 1.23 does not remove the     Authorization HTTP header when following a cross-origin     redirect (i.e., a redirect that differs in host, port,     or scheme). This can allow for credentials in the     Authorization header to be exposed to unintended hosts     or transmitted in cleartext.(CVE-2018-20060)

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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:1605 advisory.

  - python-requests: Redirect from HTTPS to HTTP does not remove Authorization header (CVE-2018-18074)

  - python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure     (CVE-2018-20060)

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

  - python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on     internal service (CVE-2019-11236)

  - python-urllib3: Certification mishandle when error should be thrown (CVE-2019-11324)

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

  - python: XSS vulnerability in the documentation XML-RPC server in server_title field (CVE-2019-16935)

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

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2686 advisory.

    Several vulnerabilities were discovered in python-urllib3, a HTTP client for Python. CVE-2018-20060     Urllib3 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a     redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization     header to be exposed to unintended hosts or transmitted in cleartext. CVE-2019-11236 CRLF injection is     possible if the attacker controls the request parameter. CVE-2019-11324 Urllib3 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-2020-26137 Urllib3 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(). For Debian 9 stretch, these problems have been fixed in     version 1.19.1-1+deb9u1. We recommend that you upgrade your python-urllib3 packages. For the detailed     security status of python-urllib3 please refer to its security tracker page at: https://security-     tracker.debian.org/tracker/python-urllib3 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.

ID	Name	Product	Family	Published	Updated	Severity
208498	CentOS 7 : python-virtualenv (RHSA-2020:2081)	Nessus	CentOS Local Security Checks	10/9/2024	10/9/2024	critical
164573	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.16)	Nessus	Misc.	9/1/2022	7/22/2025	critical
164582	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.16.1.3)	Nessus	Misc.	9/1/2022	2/17/2025	critical
164608	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.11.2)	Nessus	Misc.	9/1/2022	7/22/2025	critical
164580	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.15.1)	Nessus	Misc.	9/1/2022	2/17/2025	critical
128256	Scientific Linux Security Update : python-urllib3 on SL7.x x86_64 (20190806)	Nessus	Scientific Linux Local Security Checks	8/27/2019	5/1/2024	critical
134689	Oracle Linux 7 : python-virtualenv (ELSA-2020-0851)	Nessus	Oracle Linux Local Security Checks	3/19/2020	11/1/2024	critical
136112	RHEL 8 : python-pip (RHSA-2020:1916)	Nessus	Red Hat Local Security Checks	4/29/2020	3/13/2025	critical
293883	MiracleLinux 8 : python27:2.7 (AXSA:2020-969:01)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
124247	Fedora 29 : python-urllib3 (2019-a6c56f9756)	Nessus	Fedora Local Security Checks	4/24/2019	5/31/2024	critical
128800	EulerOS 2.0 SP5 : python-urllib3 (EulerOS-SA-2019-1877)	Nessus	Huawei Local Security Checks	9/16/2019	4/26/2024	critical
145889	CentOS 8 : python27:2.7 (CESA-2020:1605)	Nessus	CentOS Local Security Checks	2/1/2021	1/24/2024	critical
150806	Debian DLA-2686-1 : python-urllib3 - LTS security update	Nessus	Debian Local Security Checks	6/16/2021	1/24/2025	critical

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