The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS (Available with Ubuntu Pro): jhead 1:3.00-4+deb9u1ubuntu0.1~esm4 Ubuntu 14.04 LTS (Available with Ubuntu Pro): jhead 1:2.97-1+deb8u2ubuntu0.1~esm4 In general, a standard system update will make all the necessary changes.
https://ubuntu.com/security/notices/USN-6113-1
CVE-2018-6612
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