NULL Pointer Dereference Affecting libsixel package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.92% (56th percentile)

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  • Snyk IDSNYK-CONAN-LIBSIXEL-14942728
  • published15 Jan 2026
  • disclosed19 Dec 2021
  • creditAlbin Eldstål-Ahrens

Introduced: 19 Dec 2021

CVE-2021-45340  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference in the stbi__convert_format() function via the stb_image.h component. An attacker can cause a crash and denial of service by loading a specially crafted invalid PICT file.

CVSS Base Scores

version 4.0
version 3.1