CVE-2016-9877

Name	CVE-2016-9877
Description	An issue was discovered in Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6 and RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12, and 1.7.x before 1.7.7. MQTT (MQ Telemetry Transport) connection authentication with a username/password pair succeeds if an existing username is provided but the password is omitted from the connection request. Connections that use TLS with a client-provided certificate are not affected.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-3761-1
Debian Bugs	849849

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rabbitmq-server (PTS)	bullseye (security), bullseye	3.8.9-3+deb11u1	fixed
	bookworm, bookworm (security)	3.10.8-1.1+deb12u1	fixed
	trixie	3.10.8-4	fixed
	sid	4.0.5-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
rabbitmq-server	source	wheezy	(not affected)
rabbitmq-server	source	jessie	3.3.5-1.1+deb8u1	DSA-3761-1
rabbitmq-server	source	(unstable)	3.6.6-1		849849

Notes

[wheezy] - rabbitmq-server <not-affected> (Vulnerable code introduced later)
https://pivotal.io/security/cve-2016-9877
https://github.com/rabbitmq/rabbitmq-mqtt/issues/96
https://github.com/rabbitmq/rabbitmq-mqtt/pull/98