[USN-3866-1] Ghostscript vulnerability


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From: Marc Deslauriers
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID:
Subject: [USN-3866-1] Ghostscript vulnerability

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Ubuntu Security Notice USN-3866-1
January 23, 2019

ghostscript vulnerability
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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:

Ghostscript could be made to crash, access files, or run programs if it
opened a specially crafted file.

Software Description:
– ghostscript: PostScript and PDF interpreter

Details:

Tavis Ormandy discovered that Ghostscript incorrectly handled certain
PostScript files. If a user or automated system were tricked into
processing a specially crafted file, a remote attacker could possibly use=

this issue to access arbitrary 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+0-0ubuntu0.18.10.4
libgs9 9.26~dfsg+0-0ubuntu0.18.10.4

Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.4
libgs9 9.26~dfsg+0-0ubuntu0.18.04.4

Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.4
libgs9 9.26~dfsg+0-0ubuntu0.16.04.4

Ubuntu 14.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.14.04.4
libgs9 9.26~dfsg+0-0ubuntu0.14.04.4

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

References:
https://usn.ubuntu.com/usn/usn-3866-1
CVE-2019-6116

Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
8.10.4
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
8.04.4
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
6.04.4
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.1=
4.04.4

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