CVE-2021-33037

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.

The Apache Tomcat software is developed in an open and participatory environment and released under the Apache License version 2. The Apache Tomcat project is intended to be a collaboration of the best-of-breed developers from around the world. We invite you to participate in this open development project

Security Fix(es):

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 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.

Apache Tomcat 10.0.0 to 10.0.6, 9.0.0 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.

• SECURITY UPDATE: Misc vulnerability fixes
  • CVE-2019-12418, CVE-2019-17563, CVE-2020-1935, CVE-2020-11996, CVE-2020-13934, CVE-2020-13935, CVE-2020-13943, CVE-2020-17527, CVE-2021-24122, CVE-2021-30639, CVE-2021-30640, CVE-2021-33037, CVE-2021-42340, CVE-2021-43980, CVE-2022-25762, CVE-2022-34305, CVE-2022-45143, CVE-2023-24998, CVE-2023-28709, CVE-2023-34981, CVE-2023-42794, CVE-2024-21733
• Update to 8.5.100
  • debian/rules, debian/libtomcat8-java.poms, debian/maven.rules, debian/tomcat8-common.links, debian/patches/0018-fix-manager-webapp.patch, debian/patches/0019-add-distribution-to-error-page.patch, debian/patches/0021-dont-test-unsupported-ciphers.patch, debian/patches/0101-skipping-tests-incompatible-with-firewall.patch: updated
  • debian/patches/0002-do-not-load-AJP13-connector-by-default.patch, debian/patches/0026-easymock4-compatibility.patch: removed as they were applied in upstream
  • CVE-2019-0221.patch, CVE-2019-10072-1.patch, CVE-2019-10072-2.patch, CVE-2022-42252.patch, CVE-2020-1938.patch, CVE-2021-25122.patch, CVE-2021-41079.patch, CVE-2022-29885.patch, CVE-2020-9484.patch, CVE-2021-25329-pre1.patch, CVE-2021-25329.patch, CVE-2022-23181.patch, CVE-2023-44487.patch, CVE-2023-46589-pre1.patch, CVE-2023-46589-pre2.patch, CVE-2023-46589-pre3.patch, CVE-2023-46589-pre4.patch, CVE-2023-46589.patch: removed because these CVEs were fixed in upstream
• Internal tests
  • debian/test_certs/*: updated from upstream branch 9.0.x, as the 8.0.x certs were expired

TuxCare rebuilt 5 packages to address 23 CVEs. Fixed in 9.0.46-tuxcare.1.

TuxCare rebuilt 8 packages to address 32 CVEs. Fixed in 9.0.24-tuxcare.1.

TuxCare rebuilt 5 packages to address 9 CVEs. Fixed in 9.0.13-tuxcare.1.

TuxCare rebuilt 5 packages to address 26 CVEs. Fixed in 9.0.39-tuxcare.2.

TuxCare rebuilt 4 packages to address 6 CVEs. Fixed in 7.0.70-tuxcare.6.

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. (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)

The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError. (CVE-2021-42340)

This update for tomcat fixes the following issues:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

This update was imported from the SUSE:SLE-15-SP2:Update update project.

This update for tomcat fixes the following issues:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

These are all security issues fixed in the tomcat-9.0.43-2.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the tomcat10-10.1.14-1.1 package on the GA media of openSUSE Tumbleweed.

This update for tomcat, javapackages-tools fixes the following issue:

Security issue fixed:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

Non-security issues fixed:

• Add requires and conflicts to avoid the usage of the incompatible 'Java 11' with 'Tomcat'. (bsc#1185476)
• Rebuild javapackages-tools to fix a missing package on s390.

This update for tomcat fixes the following issues:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

This update for tomcat fixes the following issues:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

This update for tomcat fixes the following issues:

• CVE-2021-30640: Escape parameters in JNDI Realm queries (bsc#1188279).
• CVE-2021-33037: Process T-E header from both HTTP 1.0 and HTTP 1.1. clients (bsc#1188278).
• CVE-2021-41079: Fixed a denial of service caused by an unexpected TLS packet (bsc#1190558).

This update for tomcat fixes the following issues:

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).

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)