Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : Ghostscript vulnerability (USN-4092-1)

Medium Nessus Plugin ID 127840

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

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.

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

Solution

Update the affected ghostscript and / or libgs9 packages.

See Also

https://usn.ubuntu.com/4092-1/

Plugin Details

Severity: Medium

ID: 127840

File Name: ubuntu_USN-4092-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 2019/08/13

Updated: 2020/09/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-10216

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:canonical:ubuntu_linux:ghostscript, p-cpe:/a:canonical:ubuntu_linux:libgs9, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/08/12

Vulnerability Publication Date: 2019/11/27

Reference Information

CVE: CVE-2019-10216

USN: 4092-1

IAVB: 2019-B-0081-S