[USN-3813-1] pyOpenSSL vulnerabilities
marc.deslauriers at canonical.com
Thu Nov 8 14:57:40 UTC 2018
Ubuntu Security Notice USN-3813-1
November 08, 2018
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Several security issues were fixed in pyOpenSSL.
- pyopenssl: Python wrapper around the OpenSSL library
It was discovered that pyOpenSSL incorrectly handled memory when handling
X509 objects. A remote attacker could use this issue to cause pyOpenSSL to
crash, resulting in a denial of service, or possibly execute arbitrary
It was discovered that pyOpenSSL incorrectly handled memory when performing
operations on a PKCS #12 store. A remote attacker could possibly use this
issue to cause pyOpenSSL to consume resources, resulting in a denial of
The problem can be corrected by updating your system to the following
Ubuntu 16.04 LTS:
In general, a standard system update will make all the necessary changes.
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