ghostscript: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1330
                        Ghostscript vulnerabilities
                                2 May 2018

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

Product:           ghostscript
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-10194 CVE-2016-10317 

Reference:         ESB-2018.1291

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3636-1

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Ubuntu Security Notice USN-3636-1
April 30, 2018

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

- - Ubuntu 18.04 LTS
- - Ubuntu 17.10
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Ghostscript.

Software Description:
- - ghostscript: PostScript and PDF interpreter

Details:

It was discovered that Ghostscript incorrectly handled certain
PostScript files. An attacker could possibly use this to cause a denial
of server. (CVE-2016-10317)

It was discovered that Ghostscript incorrectly handled certain PDF
files. An attacker could possibly use this to cause a denial of
service. (CVE-2018-10194)

Update instructions:

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

Ubuntu 18.04 LTS:
ghostscript - 9.22~dfsg+1-0ubuntu1.1
libgs9 - 9.22~dfsg+1-0ubuntu1.1

Ubuntu 17.10:
ghostscript - 9.21~dfsg+1-0ubuntu3.1
libgs9 - 9.21~dfsg+1-0ubuntu3.1

Ubuntu 16.04 LTS:
ghostscript - 9.18~dfsg~0-0ubuntu2.8
libgs9 - 9.18~dfsg~0-0ubuntu2.8

Ubuntu 14.04 LTS:
ghostscript - 9.10~dfsg-0ubuntu10.12
libgs9 - 9.10~dfsg-0ubuntu10.12

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

References:
https://usn.ubuntu.com/usn/usn-3636-1
CVE-2016-10317, CVE-2018-10194

Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.22~dfsg+1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/ghostscript/9.21~dfsg+1-0ubuntu3.1
https://launchpad.net/ubuntu/+source/ghostscript/9.18~dfsg~0-0ubuntu2.8
https://launchpad.net/ubuntu/+source/ghostscript/9.10~dfsg-0ubuntu10.12

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