USN-3272-2: Ghostscript regression
Ubuntu Security Notice USN-3272-2
16th May, 2017
ghostscript regression
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
Summary
USN-3272-1 introduced a regression in Ghostscript.
Software description
- ghostscript
– PostScript and PDF interpreter
Details
USN-3272-1 fixed vulnerabilities in Ghostscript. This change introduced
a regression when the DELAYBIND feature is used with the eqproc
command. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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+1-0ubuntu7.4
-
ghostscript
9.19~dfsg+1-0ubuntu7.4
-
libgs9
9.19~dfsg+1-0ubuntu7.4
-
libgs9-common
9.19~dfsg+1-0ubuntu7.4
- Ubuntu 16.10:
-
ghostscript-x
9.19~dfsg+1-0ubuntu6.6
-
ghostscript
9.19~dfsg+1-0ubuntu6.6
-
libgs9
9.19~dfsg+1-0ubuntu6.6
-
libgs9-common
9.19~dfsg+1-0ubuntu6.6
- Ubuntu 16.04 LTS:
-
ghostscript-x
9.18~dfsg~0-0ubuntu2.6
-
ghostscript
9.18~dfsg~0-0ubuntu2.6
-
libgs9
9.18~dfsg~0-0ubuntu2.6
-
libgs9-common
9.18~dfsg~0-0ubuntu2.6
- Ubuntu 14.04 LTS:
-
ghostscript-x
9.10~dfsg-0ubuntu10.9
-
ghostscript
9.10~dfsg-0ubuntu10.9
-
libgs9
9.10~dfsg-0ubuntu10.9
-
libgs9-common
9.10~dfsg-0ubuntu10.9
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.