An activemq security update has been released for Debian GNU/Linux 9 LTS to address multiple security issues.

DLA 2583-1: activemq security update

- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2583-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Abhijith PA
March 05, 2021   https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : activemq
Version : 5.14.3-3+deb9u2
CVE ID : CVE-2017-15709 CVE-2018-11775 CVE-2019-0222
CVE-2021-26117
Debian Bug : 890352 908950 982590

Multiple security issues were discovered in activemq, a message
broker built around Java Message Service.

CVE-2017-15709

When using the OpenWire protocol in activemq, it was found that
certain system details (such as the OS and kernel version) are
exposed as plain text.

CVE-2018-11775

TLS hostname verification when using the Apache ActiveMQ Client
was missing which could make the client vulnerable to a MITM
attack between a Java application using the ActiveMQ client and
the ActiveMQ server. This is now enabled by default.

CVE-2019-0222

Unmarshalling corrupt MQTT frame can lead to broker Out of Memory
exception making it unresponsive

CVE-2021-26117

The optional ActiveMQ LDAP login module can be configured to use
anonymous access to the LDAP server. The anonymous context is used
to verify a valid users password in error, resulting in no check
on the password.

For Debian 9 stretch, these problems have been fixed in version
5.14.3-3+deb9u2.

We recommend that you upgrade your activemq packages.

For the detailed security status of activemq please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/activemq

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS