========================================================================== Ubuntu Security Notice USN-3395-1 August 17, 2017
c-ares vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: c-ares could be made to crash if it received specially crafted network traffic. Software Description: - c-ares: library for asynchronous name resolution Details: It was discovered that c-ares incorrectly handled certain NAPTR responses. A remote attacker could possibly use this issue to cause applications using c-ares to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: libc-ares2 1.12.0-1ubuntu0.1 Ubuntu 16.04 LTS: libc-ares2 1.10.0-3ubuntu0.2 Ubuntu 14.04 LTS: libc-ares2 1.10.0-2ubuntu0.2 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3395-1 CVE-2017-1000381 Package Information: https://launchpad.net/ubuntu/+source/c-ares/1.12.0-1ubuntu0.1 https://launchpad.net/ubuntu/+source/c-ares/1.10.0-3ubuntu0.2 https://launchpad.net/ubuntu/+source/c-ares/1.10.0-2ubuntu0.2
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