ESB-2019.0204.2 - UPDATE [UNIX/Linux][Ubuntu] ghostscript: Execute arbitrary code/commands - Remote with user interaction 2019-02-22

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                              ESB-2019.0204.2
                         Ghostscript vulnerability
                             22 February 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ghostscript
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Unauthorised Access             -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6116  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3866-1
   http://www.ubuntu.com/usn/usn-3866-2

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running ghostscript check for an updated version of the software for
         their operating system.
         
         This bulletin contains two (2) advisories.

Revision History:  February 22 2019: Added USN-3866-2
                   January  24 2019: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

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

- --------------------------------------------------------------------------

Ubuntu Security Notice USN-3866-2
February 21, 2019

ghostscript regression


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:

USN-3866-1 introduced a regression in Ghostscript.

Software Description:
- - ghostscript: PostScript and PDF interpreter

Details:

USN-3866-1 fixed vulnerabilities in Ghostscript. The new Ghostscript
version introduced a regression when printing certain page sizes. This
update fixes the problem.

Original advisory 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 us=
e
 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+0-0ubuntu0.18.10.5
  libgs9                          9.26~dfsg+0-0ubuntu0.18.10.5

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.5
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.5

Ubuntu 16.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.5
  libgs9                          9.26~dfsg+0-0ubuntu0.16.04.5

Ubuntu 14.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.14.04.5
  libgs9                          9.26~dfsg+0-0ubuntu0.14.04.5

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


References:
  https://usn.ubuntu.com/usn/usn-3866-2
  https://usn.ubuntu.com/usn/usn-3866-1
  https://launchpad.net/bugs/1815339

Package Information:
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=8.10.5
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=8.04.5
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=6.04.5
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=4.04.5

- --------------------------END INCLUDED TEXT--------------------

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