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


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.62% (49th percentile)

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  • Snyk IDSNYK-UNMANAGED-UNZIP-2992536
  • published25 Aug 2022
  • disclosed25 Aug 2022
  • creditnils-bars

Introduced: 25 Aug 2022

CVE-2021-4217  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for UnZip.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference due to improper handling of Unicode strings, which can lead to a null pointer dereference. Exploiting this vulnerability is possible via inserting a specially crafted zip file.

CVSS Base Scores

version 3.1