Ubuntu Security Notice 599-1 – Chris Evans discovered that Ghostscript contained a buffer overflow in its color space handling code. If a user or automated system were tricked into opening a crafted Postscript file, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/65402/USN-599-1.txt
Source: https://packetstormsecurity.com/files/65402/Ubuntu-Security-Notice-599-1.html