Libidn could be made to crash or run programs if it processed specially crafted input.
USN-3434-1 fixed a vulnerability in Libidn. This update provides the corresponding update for Ubuntu 12.04 ESM.
23 October 2017
A security issue affects these releases of Ubuntu and its derivatives:
Libidn could be made to crash or run programs if it processed specially crafted input.
USN-3434-1 fixed a vulnerability in Libidn. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Libidn incorrectly handled decoding certain digits. A remote attacker could use this issue to cause Libidn to crash, resulting in a denial of service, or possibly execute arbitrary code.
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