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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4337
                   USN-4193-1: Ghostscript vulnerability
                             15 November 2019

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

Product:           Ghostscript
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-14869  

Reference:         ESB-2019.4334

Original Bulletin: 
   https://usn.ubuntu.com/4193-1/

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USN-4193-1: Ghostscript vulnerability
14 November 2019

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

  o Ubuntu 19.10
  o Ubuntu 19.04
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS

Summary

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

Software Description

  o ghostscript - PostScript and PDF interpreter

Details

Paul Manfred and Lukas Schauer 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 19.10
    ghostscript - 9.27~dfsg+0-0ubuntu3.1
    libgs9 - 9.27~dfsg+0-0ubuntu3.1
Ubuntu 19.04
    ghostscript - 9.26~dfsg+0-0ubuntu7.4
    libgs9 - 9.26~dfsg+0-0ubuntu7.4
Ubuntu 18.04 LTS
    ghostscript - 9.26~dfsg+0-0ubuntu0.18.04.12
    libgs9 - 9.26~dfsg+0-0ubuntu0.18.04.12
Ubuntu 16.04 LTS
    ghostscript - 9.26~dfsg+0-0ubuntu0.16.04.12
    libgs9 - 9.26~dfsg+0-0ubuntu0.16.04.12

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2019-14869

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