Ubuntu 18.04 LTS: USN-3915-1 Critical: Ghostscript Remote Code Execution

ubuntu

March 21, 2019

Several security issues were fixed in Ghostscript.

Summary

Several security issues were fixed in Ghostscript.

Software Description:

- ghostscript: PostScript and PDF interpreter

Details:

It was discovered that Ghostscript incorrectly handled certain PostScript

files. If a user or automated system were tricked into processing a

specially crafted file, a remote attacker could possibly use this issue to

access arbitrary files, execute arbitrary code, or cause a denial of

service.

Topics Covered

security advisory denial of service code execution Ubuntu update instructions Ghostscript PostScript processing

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.10.8
  libgs9                          9.26~dfsg+0-0ubuntu0.18.10.8

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.8
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.8

Ubuntu 16.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.8
  libgs9                          9.26~dfsg+0-0ubuntu0.16.04.8

Ubuntu 14.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.14.04.8
  libgs9                          9.26~dfsg+0-0ubuntu0.14.04.8

In general, a standard system update will make all the necessary changes.