ESB-2018.2244 - [Ubuntu] bouncycastle: Multiple vulnerabilities 2018-08-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2244
                       Bouncy Castle vulnerabilities
                               2 August 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           bouncycastle
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
                   Reduced Security               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-1000346 CVE-2016-1000345 CVE-2016-1000343
                   CVE-2016-1000342 CVE-2016-1000341 CVE-2016-1000339
                   CVE-2016-1000338 CVE-2015-7940 CVE-2015-6644

Reference:         ASB-2018.0174
                   ASB-2018.0164
                   ASB-2018.0159
                   ASB-2018.0083
                   ASB-2018.0027
                   ESB-2018.1969

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3727-1

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USN-3727-1: Bouncy Castle vulnerabilities
1 August 2018

bouncycastle vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 14.04 LTS
Summary
Several security issues were fixed in Bouncy Castle.

Software Description
bouncycastle - Java implementation of cryptographic algorithms
Details
It was discovered that Bouncy Castle incorrectly handled certain crypto algorithms. A remote attacker could possibly use these issues to obtain sensitive information, including private keys.

Update instructions
The problem can be corrected by updating your system to the following package versions:

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
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References
CVE-2015-6644
CVE-2015-7940
CVE-2016-1000338
CVE-2016-1000339
CVE-2016-1000341
CVE-2016-1000342
CVE-2016-1000343
CVE-2016-1000345
CVE-2016-1000346

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