[USN-4469-1] Ghostscript vulnerabilities

Marc Deslauriers marc.deslauriers at canonical.com
Mon Aug 24 19:16:42 UTC 2020

Ubuntu Security Notice USN-4469-1
August 24, 2020

ghostscript vulnerabilities

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS


Several security issues were fixed in Ghostscript.

Software Description:
- ghostscript: PostScript and PDF interpreter


It was discovered that Ghostscript incorrectly handled certain document
files. If a user or automated system were tricked into processing a
specially crafted file, a remote attacker could use this issue to cause
Ghostscript to crash, resulting in a denial of service, or possibly
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-5ubuntu4.2
  libgs9                          9.50~dfsg-5ubuntu4.2

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.13
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.13

Ubuntu 16.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.13
  libgs9                          9.26~dfsg+0-0ubuntu0.16.04.13

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

  CVE-2020-16287, CVE-2020-16288, CVE-2020-16289, CVE-2020-16290,
  CVE-2020-16291, CVE-2020-16292, CVE-2020-16293, CVE-2020-16294,
  CVE-2020-16295, CVE-2020-16296, CVE-2020-16297, CVE-2020-16298,
  CVE-2020-16299, CVE-2020-16300, CVE-2020-16301, CVE-2020-16302,
  CVE-2020-16303, CVE-2020-16304, CVE-2020-16305, CVE-2020-16306,
  CVE-2020-16307, CVE-2020-16308, CVE-2020-16309, CVE-2020-16310,

Package Information:

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