The remote Debian 10 / 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-4986 advisory.

  - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

  - Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate     incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially     crafted packet could be used to trigger an infinite loop resulting in a denial of service.
    (CVE-2021-41079)

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

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

  - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

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 version of Tomcat installed on the remote host is prior to 8.5.66. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_8.5.66_security-8 advisory.

  - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017519 advisory.

    A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.

Tenable has extracted the preceding description block directly from the Unity 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 Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5360-1 advisory.

    It was discovered that Tomcat incorrectly performed input verification. A remote attacker could possibly     use this issue to intercept sensitive information. (CVE-2020-13943, CVE-2020-17527, CVE-2021-25122,     CVE-2021-30640)

    It was discovered that Tomcat did not properly deserialize untrusted data. An attacker could possibly use     this issue to execute arbitrary code. (CVE-2020-9484, CVE-2021-33037)

    It was discovered that Tomcat did not properly validate the input length. An attacker could possibly use     this to trigger an infinite loop, resulting in a denial of service. (CVE-2021-25329, CVE-2021-41079)

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 version of tomcat installed on the remote host is prior to 8.5.69-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2TOMCAT8.5-2024-017 advisory.

    2024-02-15: CVE-2021-30640 was added to this advisory.

    2024-02-15: CVE-2021-33037 was added to this advisory.

    A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

    Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP     transfer-encoding request header in some circumstances leading to the possibility to request smuggling     when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if     the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding;
    and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
    (CVE-2021-33037)

    Generation of Error Message Containing Sensitive Information vulnerability in Apache Tomcat.This issue     affects Apache Tomcat: from 8.5.7 through 8.5.63, from 9.0.0-M11 through 9.0.43.

    Users are recommended to upgrade to version 8.5.64 onwards or 9.0.44 onwards, which contain a fix for the     issue. (CVE-2024-21733)

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 remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2733 advisory.

  - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

  - Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP     transfer-encoding request header in some circumstances leading to the possibility to request smuggling     when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if     the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding;
    and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
    (CVE-2021-33037)

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of     a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue     affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. (CVE-2021-30640)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of AOS installed on the remote host is prior to 5.20.3. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.20.3 advisory.

  - xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and     watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows     remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory     corruption) via a crafted XML document. (CVE-2016-4658)

  - NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow     when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures     encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for     certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how     they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and     PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and     Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.
    (CVE-2021-43527)

  - Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP     transfer-encoding request header in some circumstances leading to the possibility to request smuggling     when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if     the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding;
    and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
    (CVE-2021-33037)

  - A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked     down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to further increase their privileges to that of a     running kernel. (CVE-2020-27777)

  - A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c.
    This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name     space (CVE-2021-22555)

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
154177	Debian DSA-4986-1 : tomcat9 - security update	Nessus	Debian Local Security Checks	2021/10/15	2021/10/15	medium
154408	EulerOS 2.0 SP3 : tomcat (EulerOS-SA-2021-2619)	Nessus	Huawei Local Security Checks	2021/10/25	2021/10/25	medium
197847	Apache Tomcat 8.5.0 < 8.5.66	Nessus	Web Servers	2024/5/23	2024/5/23	medium
314087	Unity Linux 20.1060e / 20.1070e Security Update: tomcat (UTSA-2026-017519)	Nessus	Unity Linux Local Security Checks	2026/5/11	2026/5/11	medium
159385	Ubuntu 18.04 LTS / 20.04 LTS : Tomcat vulnerabilities (USN-5360-1)	Nessus	Ubuntu Local Security Checks	2022/4/1	2024/8/27	high
190055	Amazon Linux 2 : tomcat (ALASTOMCAT8.5-2024-017)	Nessus	Amazon Linux Local Security Checks	2024/2/6	2024/12/11	medium
152349	Debian DLA-2733-1 : tomcat8 - LTS security update	Nessus	Debian Local Security Checks	2021/8/9	2022/1/26	medium
243351	Linux Distros Unpatched Vulnerability : CVE-2021-30640	Nessus	Misc.	2025/8/4	2026/7/16	medium
164611	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.20.3)	Nessus	Misc.	2022/9/1	2026/7/24	high

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