NULL Pointer Dereference Affecting unzip package, versions *


Severity

Recommended
0.0
low
0
10

Based on Debian security rating.

Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-DEBIAN10-UNZIP-2387328
  • 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:10 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:10 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 Scores

version 3.1