The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3672-1 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)

  - 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 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-2021:1490-1 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)

  - 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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017427 advisory.

    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.

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 Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:3741 advisory.

    Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web     applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster),     the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.

    This release of Red Hat JBoss Web Server 5.5.1 serves as a replacement for Red Hat JBoss Web Server 5.5.0,     and includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes,     linked to in the References.

    Security Fix(es):

    * tomcat: Apache Tomcat DoS with unexpected TLS packet (CVE-2021-41079)

    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 this issue but has instead relied only on the application's self-reported version number.

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.

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

  - 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 relies on the presence of the package as reported by the vendor.

The version of tomcat8 installed on the remote host is prior to 8.5.69-1.88. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2021-1547 advisory.

    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 Apache Tomcat. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS,     a specially crafted packet can trigger an infinite loop, resulting in a denial of service. The highest     threat from this vulnerability is to system availability. (CVE-2021-41079)

    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 version of Tomcat installed on the remote host is prior to 9.0.44. It is, therefore, affected by multiple vulnerabilities as referenced in the fixed_in_apache_tomcat_9.0.44_security-9 advisory.

  - 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)

  - 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)

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 / 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 remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2764 advisory.

  - 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.

An update of the apache package has been released.

  - 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.

An update of the apache package has been released.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:3672-1 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)

  - 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.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3670-1 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)

  - 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 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 10.0.4. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_10.0.4_security-10 advisory.

  - 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.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6943-1 advisory.

    It was discovered that Tomcat incorrectly handled certain uncommon PersistenceManager with FileStore     configurations. A remote attacker could possibly use this issue to execute arbitrary code. This issue only     affected tomcat8 for Ubuntu 18.04 LTS (CVE-2020-9484)

    It was discovered that Tomcat incorrectly handled certain HTTP/2 connection requests. A remote attacker     could use this issue to obtain wrong responses possibly containing sensitive information. This issue only     affected tomcat8 for Ubuntu 18.04 LTS (CVE-2021-25122)

    Thomas Wozenilek discovered that Tomcat incorrectly handled certain TLS packets. A remote attacker could     possibly use this issue to cause a denial of service. This issue only affected tomcat8 for Ubuntu 18.04     LTS (CVE-2021-41079)

    Trung Pham discovered that a race condition existed in Tomcat when handling session files with FileStore.
    A remote attacker could possibly use this issue to execute arbitrary code. This issue affected tomcat8 for     Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS     (CVE-2022-23181)

    It was discovered that Tomcat's documentation incorrectly stated that EncryptInterceptor provided     availability protection when running over an untrusted network. A remote attacker could possibly use this     issue to cause a denial of service even if EncryptInterceptor was being used. This issue affected tomcat8     for Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS     (CVE-2022-29885)

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 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1058-1 advisory.

    Update to Tomcat 9.0.115:

    - CVE-2025-48989: HTTP/2 protocol (including DNS over HTTPS) is vulnerable to 'MadeYouReset' DoS attack     (bsc#1243895).
    - CVE-2025-52434: race condition on connection close when using the APR/Native connector could lead to a     JVM crash       (bsc#1246389).
    - CVE-2025-53506: uncontrolled resource HTTP/2 client consumption vulnerability (bsc#1246318).
    - CVE-2025-66614: client certificate verification bypass due to virtual host mapping (bsc#1258371).
    - CVE-2026-24733: improper input validation on HTTP/0.9 requests (bsc#1258385).
    - CVE-2023-44487: Rapid reset attack (bsc#1216182).

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
155463	SUSE SLES15 Security Update : tomcat (SUSE-SU-2021:3672-1)	Nessus	SuSE Local Security Checks	2021/11/17	2023/7/13	medium
155657	openSUSE 15 Security Update : tomcat (openSUSE-SU-2021:1490-1)	Nessus	SuSE Local Security Checks	2021/11/20	2022/1/26	medium
314137	Unity Linux 20.1060e / 20.1070e Security Update: tomcat (UTSA-2026-017427)	Nessus	Unity Linux Local Security Checks	2026/5/11	2026/5/11	high
153902	RHEL 7 / 8 : Red Hat JBoss Web Server 5.5.1 Security Update (Important) (RHSA-2021:3741)	Nessus	Red Hat Local Security Checks	2021/10/7	2024/11/7	high
154177	Debian DSA-4986-1 : tomcat9 - security update	Nessus	Debian Local Security Checks	2021/10/15	2021/10/15	medium
224161	Linux Distros Unpatched Vulnerability : CVE-2021-41079	Nessus	Misc.	2025/3/5	2025/9/30	high
154900	Amazon Linux AMI : tomcat8 (ALAS-2021-1547)	Nessus	Amazon Linux Local Security Checks	2021/11/5	2025/4/11	medium
194473	Apache Tomcat 9.0.0.M1 < 9.0.44 multiple vulnerabilities	Nessus	Web Servers	2024/4/29	2024/5/23	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
153601	Debian DLA-2764-1 : tomcat8 - LTS security update	Nessus	Debian Local Security Checks	2021/9/24	2022/1/20	high
153938	Photon OS 1.0: Apache PHSA-2021-1.0-0438	Nessus	PhotonOS Local Security Checks	2021/10/7	2021/10/12	high
153988	Photon OS 3.0: Apache PHSA-2021-3.0-0312	Nessus	PhotonOS Local Security Checks	2021/10/11	2025/8/22	high
155382	openSUSE 15 Security Update : tomcat (openSUSE-SU-2021:3672-1)	Nessus	SuSE Local Security Checks	2021/11/17	2022/1/26	medium
155466	SUSE SLES15 Security Update : tomcat (SUSE-SU-2021:3670-1)	Nessus	SuSE Local Security Checks	2021/11/17	2023/7/13	medium
197855	Apache Tomcat 10.0.0.M1 < 10.0.4	Nessus	Web Servers	2024/5/23	2024/5/23	high
204963	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : Tomcat vulnerabilities (USN-6943-1)	Nessus	Ubuntu Local Security Checks	2024/8/1	2024/8/27	high
303957	SUSE SLES12 Security Update : tomcat (SUSE-SU-2026:1058-1)	Nessus	SuSE Local Security Checks	2026/3/27	2026/4/30	critical

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