[USN-3866-1] Ghostscript vulnerability

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[USN-3866-1] Ghostscript vulnerability

Marc Deslauriers-3
==========================================================================
Ubuntu Security Notice USN-3866-1
January 23, 2019

ghostscript vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Ghostscript could be made to crash, access files, or run programs if it
opened a specially crafted file.

Software Description:
- ghostscript: PostScript and PDF interpreter

Details:

Tavis Ormandy 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.

Update instructions:

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

Ubuntu 18.10:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.10.4
  libgs9                          9.26~dfsg+0-0ubuntu0.18.10.4

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.4

Ubuntu 16.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.16.04.4

Ubuntu 14.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.14.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.14.04.4

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

References:
  https://usn.ubuntu.com/usn/usn-3866-1
  CVE-2019-6116

Package Information:
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.10.4
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.4
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.4
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.14.04.4


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