Debian DLA-1620-1 : ghostscript security update

Medium Nessus Plugin ID 119890

Synopsis

The remote Debian host is missing a security update.

Description

Some vulnerabilities were discovered in ghostscript, an interpreter for the PostScript language and for PDF.

CVE-2018-19134

The setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a pattern dictionary was a structure type.

CVE-2018-19478

Attempting to open a carefully crafted PDF file results in long-running computation. A sufficiently bad page tree can lead to us taking significant amounts of time when checking the tree for recursion.

For Debian 8 'Jessie', these problems have been fixed in version 9.06~dfsg-2+deb8u13.

We recommend that you upgrade your ghostscript packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2018/12/msg00019.html

https://packages.debian.org/source/jessie/ghostscript

Plugin Details

Severity: Medium

ID: 119890

File Name: debian_DLA-1620.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/12/28

Updated: 2020/03/25

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ghostscript, p-cpe:/a:debian:debian_linux:ghostscript-dbg, p-cpe:/a:debian:debian_linux:ghostscript-doc, p-cpe:/a:debian:debian_linux:ghostscript-x, p-cpe:/a:debian:debian_linux:libgs-dev, p-cpe:/a:debian:debian_linux:libgs9, p-cpe:/a:debian:debian_linux:libgs9-common, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/12/27

Vulnerability Publication Date: 2018/12/20

Reference Information

CVE: CVE-2018-19134, CVE-2018-19478