CVE-2016-2166

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-04-12 · updated 2026-06-17
Weakness: CWE-200

Description

The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.

Affected products

Apache Qpid Proton: through 0.12.0
Fedoraproject Fedora: 23

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182414.html
http://packetstormsecurity.com/files/136403/Apache-Qpid-Proton-0.12.0-SSL-Failure.html
http://qpid.apache.org/releases/qpid-proton-0.12.1/release-notes.html
http://www.securityfocus.com/archive/1/537864/100/0/threaded
https://git-wip-us.apache.org/repos/asf?p=qpid-proton.git%3Bh=a058585
https://issues.apache.org/jira/browse/PROTON-1157
https://lists.apache.org/thread.html/914424e4d798a340f523b6169aaf39b626971d9bb00fcdeb1d5d6c0d%40%3Ccommits.qpid.apache.org%3E
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182414.html
http://packetstormsecurity.com/files/136403/Apache-Qpid-Proton-0.12.0-SSL-Failure.html
http://qpid.apache.org/releases/qpid-proton-0.12.1/release-notes.html
http://www.securityfocus.com/archive/1/537864/100/0/threaded
https://git-wip-us.apache.org/repos/asf?p=qpid-proton.git%3Bh=a058585

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