CVE-2021-4217 — LOW (3.3) — White Hats Nepal

Vulnerability 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.

CVSS Score

3.3

LOW

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Unzip Project	Unzip	6.0
Fedoraproject	Fedora	35
Redhat	Enterprise Linux	6.0

Related Weaknesses (CWE)

CWE-476

References

https://access.redhat.com/security/cve/CVE-2021-4217Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077ExploitIssue TrackingPatch
https://bugzilla.redhat.com/show_bug.cgi?id=2044583ExploitIssue TrackingThird Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4217Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077ExploitIssue TrackingPatch
https://bugzilla.redhat.com/show_bug.cgi?id=2044583ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2021-4217?

CVE-2021-4217 is a vulnerability with a CVSS score of 3.3 (LOW). 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...

How severe is CVE-2021-4217?

CVE-2021-4217 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-4217?

Check the references section above for vendor advisories and patch information. Affected products include: Unzip Project Unzip, Fedoraproject Fedora, Redhat Enterprise Linux.