NULL Pointer Dereference Affecting ncurses package, versions <6.0+20160213-1ubuntu1+esm1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.15% (65th percentile)

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  • Snyk IDSNYK-UBUNTU1604-NCURSES-1189311
  • published10 Sept 2020
  • disclosed12 Nov 2018

Introduced: 12 Nov 2018

CVE-2018-19217  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 ncurses to version 6.0+20160213-1ubuntu1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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