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:
https://wiki.ubuntu.com/Security/Upgrades.

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


Source From: ubuntu.com.
Original article title: USN-3272-1: Ghostscript vulnerabilities.
This full article can be read at: USN-3272-1: Ghostscript vulnerabilities.

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