USN-3272-1: Ghostscript vulnerabilities

Ubuntu Security Notice USN-3272-1

28th April, 2017

ghostscript vulnerabilities

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

• Ubuntu 17.04
• Ubuntu 16.10
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Ghostscript.

Software description

• ghostscript - PostScript and PDF interpreter

Details

It was discovered that Ghostscript improperly handled parameters to
the rsdparams and eqproc commands. An attacker could use these to
craft a malicious document that could disable -dSAFER protections,
thereby allowing the execution of arbitrary code, or cause a denial
of service (application crash). (CVE-2017-8291)

Kamil Frankowicz discovered a use-after-free vulnerability in the
color management module of Ghostscript. An attacker could use this
to cause a denial of service (application crash). (CVE-2016-10217)

Kamil Frankowicz discovered a divide-by-zero error in the scan
conversion code in Ghostscript. An attacker could use this to cause
a denial of service (application crash). (CVE-2016-10219)

Kamil Frankowicz discovered multiple NULL pointer dereference errors in
Ghostscript. An attacker could use these to cause a denial of service
(application crash). (CVE-2016-10220, CVE-2017-5951, CVE-2017-7207)

Update instructions

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

Ubuntu 17.04:

ghostscript-x 9.19~dfsg+1-0ubuntu7.2

ghostscript 9.19~dfsg+1-0ubuntu7.2

libgs9 9.19~dfsg+1-0ubuntu7.2

libgs9-common 9.19~dfsg+1-0ubuntu7.2

Ubuntu 16.10:

ghostscript-x 9.19~dfsg+1-0ubuntu6.4

ghostscript 9.19~dfsg+1-0ubuntu6.4

libgs9 9.19~dfsg+1-0ubuntu6.4

libgs9-common 9.19~dfsg+1-0ubuntu6.4

Ubuntu 16.04 LTS:

ghostscript-x 9.18~dfsg~0-0ubuntu2.4

ghostscript 9.18~dfsg~0-0ubuntu2.4

libgs9 9.18~dfsg~0-0ubuntu2.4

libgs9-common 9.18~dfsg~0-0ubuntu2.4

Ubuntu 14.04 LTS:

ghostscript-x 9.10~dfsg-0ubuntu10.7

ghostscript 9.10~dfsg-0ubuntu10.7

libgs9 9.10~dfsg-0ubuntu10.7

libgs9-common 9.10~dfsg-0ubuntu10.7

Ubuntu 12.04 LTS:

ghostscript-x 9.05~dfsg-0ubuntu4.5

ghostscript 9.05~dfsg-0ubuntu4.5

libgs9 9.05~dfsg-0ubuntu4.5

libgs9-common 9.05~dfsg-0ubuntu4.5

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

References

CVE-2016-10217, CVE-2016-10219, CVE-2016-10220, CVE-2017-5951, CVE-2017-7207, CVE-2017-8291

from Ubuntu Security Notices http://ift.tt/2pa9w7x