Hi all,
A couple of new Tomcat CVEs, including one of high severity, were just
announced.
---------- Forwarded message ---------
From: Mark Thomas <markt@xxxxxxxxxx>
Date: Mon, Apr 28, 2025 at 1:14 PM
Subject: [SECURITY] CVE-2025-31650 Apache Tomcat - DoS via invalid HTTP
prioritization header
To: Tomcat Users List <users@xxxxxxxxxxxxxxxxx>
Cc: <announce@xxxxxxxxxx>, announce@xxxxxxxxxxxxxxxxx <
announce@xxxxxxxxxxxxxxxxx>, Tomcat Developers List <dev@xxxxxxxxxxxxxxxxx>
CVE-2025-31650 Apache Tomcat - DoS via invalid HTTP prioritization header
Severity: High
Vendor: The Apache Software Foundation
Versions Affected:
Apache Tomcat 11.0.0-M2 to 11.0.5
Apache Tomcat 10.1.10 to 10.1.39
Apache Tomcat 9.0.76 to 9.0.102
Description:
Incorrect error handling for some invalid HTTP priority headers resulted
in incomplete clean-up of the failed request which created a memory
leak. A large number of such requests could trigger an
OutOfMemoryException resulting in a denial of service.
Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 11.0.6 or later
- Upgrade to Apache Tomcat 10.1.40 or later
- Upgrade to Apache Tomcat 9.0.104 or later
Note: This issue was fixed in Apache Tomcat 9.0.103 but the release vote
for the 9.0.103 release candidate did not pass. Therefore, although
users must download 9.0.104 to obtain a version that includes a fix for
this issue, version 9.0.103 is not included in the list of affected
versions.
Credit:
The vulnerability was identified by the Tomcat security team.
History:
2025-04-28 Original advisory
References:
[1] https://tomcat.apache.org/security-11.html
[2] https://tomcat.apache.org/security-10.html
[3] https://tomcat.apache.org/security-9.html
--
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Jennifer Oxelson Ganter NSF Unidata
Software Engineer IV P.O. Box 3000
oxelson@xxxxxxxx Boulder, CO 80307
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