Ubuntu Security Update USN-7041-2: CUPS vulnerability

[LinuxBot]

USN-7041-1 fixed a vulnerability in CUPS. This update provides the corresponding update for Ubuntu 18.04 LTS. Original advisory details: Simone Margaritelli discovered that CUPS incorrectly sanitized IPP data when creating PPD files. A remote attacker could possibly use this issue to manipulate PPD files and execute arbitrary code when a printer is used.

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