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Ubuntu Security Notice USN-3866-2
February 21, 2019
ghostscript regression
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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:
USN-3866-1 introduced a regression in Ghostscript.
Software Description:
– ghostscript: PostScript and PDF interpreter
Details:
USN-3866-1 fixed vulnerabilities in Ghostscript. The new Ghostscript
version introduced a regression when printing certain page sizes. This
update fixes the problem.
Original advisory 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+0-0ubuntu0.18.10.5
libgs9 9.26~dfsg+0-0ubuntu0.18.10.5
Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.5
libgs9 9.26~dfsg+0-0ubuntu0.18.04.5
Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.5
libgs9 9.26~dfsg+0-0ubuntu0.16.04.5
Ubuntu 14.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.14.04.5
libgs9 9.26~dfsg+0-0ubuntu0.14.04.5
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3866-2
https://usn.ubuntu.com/usn/usn-3866-1
https://launchpad.net/bugs/1815339
Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.10.5
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.5
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.5
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.14.04.5
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