USN-3434-2: Libidn vulnerability
23 October 2017
Libidn could be made to crash or run programs if it processed specially crafted input.
- libidn - implementation of IETF IDN specifications
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.