Ubuntu Security Notice 3616-1 - It was discovered that Python Crypto incorrectly generated ElGamal key parameters. A remote attacker could possibly use this issue to obtain sensitive information.
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Ubuntu Security Notice USN-3616-1
April 03, 2018
python-crypto vulnerability
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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