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Vulnerability of Bouncy Castle: information disclosure via GCM

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via GCM of Bouncy Castle, in order to obtain sensitive information.
Vulnerable software: Bouncy Castle JCE, Debian, Fedora, Android OS, JBoss EAP by Red Hat, Ubuntu.
Severity of this announce: 2/4.
Creation date: 11/04/2017.
Références of this computer vulnerability: CVE-2015-6644, DLA-893-1, DSA-3829-1, FEDORA-2017-4c3ac44551, RHSA-2017:1832-01, RHSA-2017:2808-01, RHSA-2017:2809-01, RHSA-2017:2810-01, RHSA-2017:2811-01, USN-3727-1, VIGILANCE-VUL-22393.

Description of the vulnerability 

An attacker can bypass access restrictions to data via GCM of Bouncy Castle, in order to obtain sensitive information.
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This weakness announce impacts software or systems such as Bouncy Castle JCE, Debian, Fedora, Android OS, JBoss EAP by Red Hat, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability alert is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer threat announce.

Solutions for this threat 

Bouncy Castle: patch for GCM.
A patch is indicated in information sources.

Debian: new bouncycastle packages.
New packages are available:
  Debian 7: bouncycastle 1.44+dfsg-3.1+deb7u2
  Debian 8: bouncycastle 1.49+dfsg-3+deb8u2

Fedora 24: new bouncycastle packages.
New packages are available:
  Fedora 24: bouncycastle 1.52-9.fc24

Google Android OS: solution of January 2016.
The solution is indicated in information sources.

Red Hat JBoss Enterprise Application Platform: version 7.0.8.
The version 7.0.8 is fixed:
  https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=appplatform&downloadType=securityPatches&version=7.0

Red Hat JBoss Fuse/A-MQ: version 6.3 R4.
The version 6.3 R4 is fixed:
  https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jboss.fuse&downloadType=securityPatches&version=6.3
  https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jboss.amq&downloadType=securityPatches&version=6.3

Ubuntu 14.04: new bouncycastle packages.
New packages are available:
  Ubuntu 14.04 LTS: libbcmail-java 1.49+dfsg-2ubuntu0.1, libbcpg-java 1.49+dfsg-2ubuntu0.1, libbcpkix-java 1.49+dfsg-2ubuntu0.1, libbcprov-java 1.49+dfsg-2ubuntu0.1
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