NULL Pointer Dereference Affecting unzip package, versions *


Severity

Recommended
0.0
low
0
10

Based on Debian security rating.

Threat Intelligence

EPSS
0.62% (47th 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 IDSNYK-DEBIAN9-UNZIP-2387306
  • published28 Jan 2022
  • disclosed24 Aug 2022

Introduced: 28 Jan 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 Debian:9 unzip.

NVD Description

Note: Versions mentioned in the description apply only to the upstream unzip package and not the unzip package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

CVSS Base Scores

version 3.1