| Name | CVE-2025-27533 |
| Description | Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected. Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue. Existing users may implement mutual TLS to mitigate the risk on affected brokers. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4222-1 |
| Debian Bugs | 1104933 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| activemq (PTS) | bullseye | 5.16.1-1 | vulnerable |
| bullseye (security) | 5.16.1-1+deb11u2 | fixed | |
| bookworm, bookworm (security) | 5.17.2+dfsg-2+deb12u1 | vulnerable | |
| sid, trixie | 5.17.6+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| activemq | source | bullseye | 5.16.1-1+deb11u2 | DLA-4222-1 | ||
| activemq | source | (unstable) | 5.17.6+dfsg-2 | 1104933 |
https://issues.apache.org/jira/browse/AMQ-6596
Fixed by https://github.com/apache/activemq/pull/1399