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.
CVE-2021-4217
CVSS base score
3.3 (v3.1)
Severity
LOW
Attack vector
Local
Weakness
CWE-476
Last modified
November 2, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
unzip project unzip
fedoraproject fedora
redhat enterprise linux
References
- access.redhat.com Third Party Advisory
- bugs.launchpad.net Exploit, Issue Tracking, Patch
- bugzilla.redhat.com Exploit, Issue Tracking, Third Party Advisory
- access.redhat.com Third Party Advisory
- bugs.launchpad.net Exploit, Issue Tracking, Patch
- bugzilla.redhat.com Exploit, Issue Tracking, Third Party Advisory