Debian DSA-4518-1 : ghostscript - security update

critical Nessus Plugin ID 128560
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that various procedures in Ghostscript, the GPL PostScript/PDF interpreter, do not properly restrict privileged calls, which could result in bypass of file system restrictions of the dSAFER sandbox.

Solution

Upgrade the ghostscript packages.

For the oldstable distribution (stretch), these problems have been fixed in version 9.26a~dfsg-0+deb9u5.

For the stable distribution (buster), these problems have been fixed in version 9.27~dfsg-2+deb10u2.

See Also

https://security-tracker.debian.org/tracker/source-package/ghostscript

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

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

https://www.debian.org/security/2019/dsa-4518

Plugin Details

Severity: Critical

ID: 128560

File Name: debian_DSA-4518.nasl

Version: 1.7

Type: local

Agent: unix

Published: 9/9/2019

Updated: 7/8/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ghostscript, cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/7/2019

Vulnerability Publication Date: 9/3/2019

Reference Information

CVE: CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817

DSA: 4518

IAVB: 2019-B-0081-S