[USN-3803-1] Ghostscript vulnerabilities

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[USN-3803-1] Ghostscript vulnerabilities

Marc Deslauriers-3
==========================================================================
Ubuntu Security Notice USN-3803-1
October 30, 2018

ghostscript vulnerabilities
==========================================================================

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:

Several security issues were fixed in Ghostscript.

Software Description:
- ghostscript: PostScript and PDF interpreter

Details:

Tavis Ormandy discovered multiple security issues in Ghostscript. If a user
or automated system were tricked into processing a specially crafted file,
a remote attacker could possibly use these issues 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                     9.25~dfsg+1-0ubuntu1.1
  libgs9                          9.25~dfsg+1-0ubuntu1.1

Ubuntu 18.04 LTS:
  ghostscript                     9.25~dfsg+1-0ubuntu0.18.04.2
  libgs9                          9.25~dfsg+1-0ubuntu0.18.04.2

Ubuntu 16.04 LTS:
  ghostscript                     9.25~dfsg+1-0ubuntu0.16.04.2
  libgs9                          9.25~dfsg+1-0ubuntu0.16.04.2

Ubuntu 14.04 LTS:
  ghostscript                     9.25~dfsg+1-0ubuntu0.14.04.2
  libgs9                          9.25~dfsg+1-0ubuntu0.14.04.2

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

References:
  https://usn.ubuntu.com/usn/usn-3803-1
  CVE-2018-17961, CVE-2018-18073, CVE-2018-18284

Package Information:
  https://launchpad.net/ubuntu/+source/ghostscript/9.25~dfsg+1-0ubuntu1.1
  https://launchpad.net/ubuntu/+source/ghostscript/9.25~dfsg+1-0ubuntu0.18.04.2
  https://launchpad.net/ubuntu/+source/ghostscript/9.25~dfsg+1-0ubuntu0.16.04.2
  https://launchpad.net/ubuntu/+source/ghostscript/9.25~dfsg+1-0ubuntu0.14.04.2


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