==========================================================================
Ubuntu Security Notice USN-3616-1
April 03, 2018

python-crypto vulnerability
==========================================================================

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

– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

Python Crypto could expose sensitive information.

Software Description:
– python-crypto: cryptographic algorithms and protocols for Python

Details:

It was discovered that Python Crypto incorrectly generated ElGamal key
parameters. A remote attacker could possibly use this issue to obtain
sensitive information.

Update instructions:

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

Ubuntu 17.10:
python-crypto 2.6.1-7ubuntu0.1
python3-crypto 2.6.1-7ubuntu0.1

Ubuntu 16.04 LTS:
python-crypto 2.6.1-6ubuntu0.16.04.3
python3-crypto 2.6.1-6ubuntu0.16.04.3

Ubuntu 14.04 LTS:
python-crypto 2.6.1-4ubuntu0.3
python3-crypto 2.6.1-4ubuntu0.3

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

References:
https://usn.ubuntu.com/usn/usn-3616-1
CVE-2018-6594

Package Information:
https://launchpad.net/ubuntu/+source/python-crypto/2.6.1-7ubuntu0.1
https://launchpad.net/ubuntu/+source/python-crypto/2.6.1-6ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/python-crypto/2.6.1-4ubuntu0.3

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