NULL Pointer Dereference Affecting vim-minimal-debuginfo package, versions <2:9.2.240-1.amzn2023.0.2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2023-VIMMINIMALDEBUGINFO-16068306
  • published15 Apr 2026
  • disclosed12 Mar 2026

Introduced: 12 Mar 2026

CVE-2026-32249  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 vim-minimal-debuginfo to version 2:9.2.240-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1584.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim-minimal-debuginfo package and not the vim-minimal-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Vim is an open source, command line text editor. From 9.1.0011 to before 9.2.0137, Vim's NFA regex compiler, when encountering a collection containing a combining character as the endpoint of a character range (e.g. [0-0\u05bb]), incorrectly emits the composing bytes of that character as separate NFA states. This corrupts the NFA postfix stack, resulting in NFA_START_COLL having a NULL out1 pointer. When nfa_max_width() subsequently traverses the compiled NFA to estimate match width for the look-behind assertion, it dereferences state->out1->out without a NULL check, causing a segmentation fault. This vulnerability is fixed in 9.2.0137.

CVSS Base Scores

version 3.1