Ubuntu Security Notice USN-6391-2

Ubuntu Security Notice 6391-2 - USN-6391-1 fixed a vulnerability in CUPS. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that CUPS incorrectly parsed certain Postscript objects. If a user or automated system were tricked into printing a specially crafted document, a remote attacker could use this issue to cause CUPS to crash, resulting in a denial of service, or possibly execute arbitrary code.

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