[USN-3831-2] Ghostscript regression


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From: Marc Deslauriers
Reply-To: Ubuntu Security
To: “ubuntu-security-announce@lists.ubuntu.com”

Message-ID:
Subject: [USN-3831-2] Ghostscript regression

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Ubuntu Security Notice USN-3831-2
December 06, 2018

ghostscript regression
=
=

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

– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

USN-3831-1 introduced a regression in Ghostscript.

Software Description:
– ghostscript: PostScript and PDF interpreter

Details:

USN-3831-1 fixed vulnerabilities in Ghostscript. Ghostscript 9.26
introduced a regression when used with certain options. This update fixes=

the problem.

Original advisory details:

It was discovered that Ghostscript contained multiple security issues. I=
f a
user or automated system were tricked into processing a specially crafte=
d
file, a remote attacker could possibly use these issues to access arbitr=
ary
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 18.10:
ghostscript 9.26~dfsg+0-0ubuntu0.18.10.3
libgs9 9.26~dfsg+0-0ubuntu0.18.10.3

Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.3
libgs9 9.26~dfsg+0-0ubuntu0.18.04.3

Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.3
libgs9 9.26~dfsg+0-0ubuntu0.16.04.3

Ubuntu 14.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.14.04.3
libgs9 9.26~dfsg+0-0ubuntu0.14.04.3

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

References:
https://usn.ubuntu.com/usn/usn-3831-2
https://usn.ubuntu.com/usn/usn-3831-1
https://launchpad.net/bugs/1806517

Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
8.10.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
8.04.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
6.04.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
4.04.3

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