VULNERABILITY INTELLIGENCE

CVE-2021-4217

CVSS score3.3 LOW

EPSS probability0.62%

CISA KEVNot currently listed

Published2022-08-24

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Description

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.

Weakness classification

secalert@redhat.com: CWE-476
nvd@nist.gov: CWE-476

Primary references

secalert@redhat.com — Third Party Advisory
secalert@redhat.com — Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com — Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory