[USN-4445-1] Ghostscript vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-4445-1
August 03, 2020

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

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

- Ubuntu 20.04 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:

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,

Update instructions:

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

Ubuntu 20.04 LTS:
  ghostscript                     9.50~dfsg-5ubuntu4.1
  libgs9                          9.50~dfsg-5ubuntu4.1

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

References:
  https://usn.ubuntu.com/4445-1
  CVE-2020-15900

Package Information:
  https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfsg-5ubuntu4.1

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