CVE-2018-19491 Information

Description

An issue was discovered in post.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the PS_options function. This flaw is caused by a missing size check of an argument passed to the \set font\ function. This issue occurs when the Gnuplot postscript terminal is used as a backend.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00066.html https://lists.debian.org/debian-lts-announce/2018/11/msg00031.html https://lists.debian.org/debian-lts-announce/2018/11/msg00035.html https://sourceforge.net/p/gnuplot/bugs/2094/ https://sourceforge.net/p/gnuplot/gnuplot-main/ci/d5020716834582b20a5e12cdd49f39ee4f9dd949/ https://usn.ubuntu.com/4541-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8