Apache Tomcat: HTTP request smuggling via malformed trailer headers
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0 through 11.0.0, from 10.1.0 through 10.1.15, from 9.0.0 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
02 / AFFECTED SOFTWARE
Affected packages
202 explicit affected versions
202 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0 through 11.0.0, from 10.1.0 through 10.1.15, from 9.0.0 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
Improper Input Validation vulnerability in Apache Tomcat. Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82, and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
05 / REFERENCES
Further evidence
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46589.json
- https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
- https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-46589
- https://security.netapp.com/advisory/ntap-20231214-0009/
- https://www.openwall.com/lists/oss-security/2023/11/28/2
- http://www.openwall.com/lists/oss-security/2023/11/28/2
- https://github.com/apache/tomcat
- https://github.com/apache/tomcat/commit/6f181e1062a472bc5f0234980f66cbde42c1041b
- https://github.com/apache/tomcat/commit/7a2d8818fcea0b51747a67af9510ce7977245ebd
- https://github.com/apache/tomcat/commit/aa92971e879a519384c517febc39fd04c48d4642
- https://github.com/apache/tomcat/commit/b5776d769bffeade865061bc8ecbeb2b56167b08
- https://security.netapp.com/advisory/ntap-20231214-0009
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-8.html
- https://tomcat.apache.org/security-9.html