Programs using the Python Cryptography Toolkit could be made to crash or run programs if they receive specially crafted network traffic or other input.
USN-3199-1 fixed a vulnerability in Python Crypto. This update provides the corresponding update for Ubuntu 12.04 ESM.
28 August 2017
A security issue affects these releases of Ubuntu and its derivatives:
Programs using the Python Cryptography Toolkit could be made to crash or run programs if they receive specially crafted network traffic or other input.
USN-3199-1 fixed a vulnerability in Python Crypto. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that the ALGnew function in block_templace.c in the Python Cryptography Toolkit contained a heap-based buffer overflow vulnerability. A remote attacker could use this flaw to execute arbitrary code by using a crafted initialization vector parameter.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon