==========================================================================
Ubuntu Security Notice USN-4092-1
August 12, 2019
ghostscript vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
Ghostscript could be made to access files if it opened a specially
crafted file.
Software Description:
– ghostscript: PostScript and PDF interpreter
Details:
Netanel Fisher discovered that the font handler in Ghostscript did not
properly restrict privileged calls when ‘-dSAFER’ restrictions were in
effect. 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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.04:
ghostscript 9.26~dfsg+0-0ubuntu7.2
libgs9 9.26~dfsg+0-0ubuntu7.2
Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.10
libgs9 9.26~dfsg+0-0ubuntu0.18.04.10
Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.10
libgs9 9.26~dfsg+0-0ubuntu0.16.04.10
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4092-1
CVE-2019-10216
Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu7.2
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.10
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.10
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