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Date: Tue, 28 Nov 2023 15:32:50 +0000
From: Mark Thomas <markt@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2023-46589: Apache Tomcat: HTTP request smuggling via malformed
trailer headers
Severity: important
Affected versions:
- Apache Tomcat 11.0.0-M1 through 11.0.0-M10
- Apache Tomcat 10.1.0-M1 through 10.1.15
- Apache Tomcat 9.0.0-M1 through 9.0.82
- Apache Tomcat 8.5.0 through 8.5.95
Description:
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.
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.
Credit:
Norihito Aimoto (OSSTech Corporation) (finder)
References:
https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
https://tomcat.apache.org/
https://www.cve.org/CVERecord?id=CVE-2023-46589
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