[USN-3616-1] Python Crypto vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Tue Apr 3 19:48:33 UTC 2018

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


Python Crypto could expose sensitive information.

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


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.


Package Information:

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