========================================================================== Ubuntu Security Notice USN-3434-1 October 02, 2017
libidn vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Libidn could be made to crash or run programs if it processed specially crafted input. Software Description: - libidn: implementation of IETF IDN specifications 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. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: libidn11 1.33-1ubuntu0.1 Ubuntu 16.04 LTS: libidn11 1.32-3ubuntu1.2 Ubuntu 14.04 LTS: libidn11 1.28-1ubuntu2.2 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3434-1 CVE-2017-14062 Package Information: https://launchpad.net/ubuntu/+source/libidn/1.33-1ubuntu0.1 https://launchpad.net/ubuntu/+source/libidn/1.32-3ubuntu1.2 https://launchpad.net/ubuntu/+source/libidn/1.28-1ubuntu2.2
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