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Improper Certificate Validation The advisory has been revoked - it doesn't affect any version of package qpid-proton  (opens in a new tab)

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EPSS
0.16% (53rd percentile)

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  • Snyk IDSNYK-UBUNTU1904-QPIDPROTON-650195
  • published10 Sept 2020
  • disclosed13 Nov 2018
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Introduced: 13 Nov 2018

CVE-2018-17187  (opens in a new tab)
CWE-295  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qpid-proton package and not the qpid-proton package as distributed by Ubuntu.

The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS, enabled by use of the 'transport.ssl(...)' methods. Unless a verification mode was explicitly configured, client and server modes previously defaulted as documented to not verifying a peer certificate, with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0, with attempts to use it resulting in an exception. This left only the option to verify the certificate is trusted, leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted, e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is now the default for client mode usage unless configured otherwise.