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Sid 1-47882


FILE-OTHER Ghostscript -dSAFER sandbox bypass attempt


This event is generated when malicious postscript is attempts to perform command injection in Ghostscripts


Attempted Administrator Privilege Gain


CVSS base score 7.8

CVSS impact score 5.9

CVSS exploitability score 1.8

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Detailed information

CVE-2018-16509: An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.

Affected systems

  • artifex ghostscript 8_64
  • canonical ubuntu_linux 14.04
  • canonical ubuntu_linux 16.04
  • canonical ubuntu_linux 18.04
  • debian debian_linux 8.0
  • debian debian_linux 9.0
  • redhat enterpriselinuxdesktop 7.0
  • redhat enterpriselinuxserver 7.0
  • redhat enterpriselinuxserver_eus 7.5
  • redhat enterpriselinuxworkstation 7.0

Ease of attack


Access Vector

Access Complexity


False positives

False negatives

Corrective action


  • Cisco's Talos Intelligence Group

Additional References