CVE-2018-8975

Publication date 25 March 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The pm_mallocarray2 function in lib/util/mallocvar.c in Netpbm through 10.81.03 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted image file, as demonstrated by pbmmask.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
netpbm-free	17.10 artful	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release

Notes

debian

Vulnerable code not present, Debian uses an unaffected fork

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	5.5 · Medium
Exploitability score	-
Impact score	-

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