A rabbitmq-server security update has been released for Debian GNU/Linux 9 LTS to address several vulnerabilities.

DLA 2710-1: rabbitmq-server security update

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Debian LTS Advisory DLA-2710-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Abhijith PA
July 19, 2021   https://wiki.debian.org/LTS
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Package : rabbitmq-server
Version : 3.6.6-1+deb9u1
CVE ID : CVE-2017-4965 CVE-2017-4966 CVE-2017-4967 CVE-2019-11281
CVE-2019-11287 CVE-2021-22116

Several vulnerabilities were discovered in rabbitmq-server, a
message-broker software.

CVE-2017-4965

Several forms in the RabbitMQ management UI are vulnerable to XSS
attacks.

CVE-2017-4966

RabbitMQ management UI stores signed-in user credentials in a
browser's local storage without expiration, making it possible to
retrieve them using a chained attack

CVE-2017-4967

Several forms in the RabbitMQ management UI are vulnerable to XSS
attacks.

CVE-2019-11281

The virtual host limits page, and the federation management UI,
which do not properly sanitize user input. A remote authenticated
malicious user with administrative access could craft a cross site
scripting attack that would gain access to virtual hosts and
policy management information

CVE-2019-11287

The "X-Reason" HTTP Header can be leveraged to insert a malicious
Erlang format string that will expand and consume the heap,
resulting in the server crashing.

CVE-2021-22116

A malicious user can exploit the vulnerability by sending
malicious AMQP messages to the target RabbitMQ instance.

For Debian 9 stretch, these problems have been fixed in version
3.6.6-1+deb9u1.

We recommend that you upgrade your rabbitmq-server packages.

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

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