---
id: CVE-2018-19217
title: >-
  In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the
  function _nc_name_match that will lead to a denial of service attack
summary: >-
  In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the
  function _nc_name_match that will lead to a denial of service attack. NOTE:
  the original report stated version 6.1, but the issue did not reproduce for
  that v…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: invisible-island
product: ncurses
affected:
  - ncurses = 6.1
published: '2018-11-12'
updated: '2026-07-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-19217'
references:
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1643753'
    label: cve@mitre.org
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1643753'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01309
epssPercentile: 0.68907
ingestedAt: '2026-07-23T19:19:13.087Z'
---

## Overview

In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party

## Affected

- `ncurses = 6.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.