CVE-2021-4217

2022-08-2416:15:10

CWE-476

[email protected]

web.nvd.nist.gov

203

cve-2021-4217

unzip vulnerability

null pointer dereference

zip file handling

code execution

3.3 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

3.9 Low

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.9%

JSON

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.

Affected configurations

Vulners

NVD

Node

unzip_projectunzipRange≤6.0

VendorProductVersionCPE
unzip_projectunzip*cpe:2.3:a:unzip_project:unzip:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
unzip_project	unzip	*	cpe:2.3:a:unzip_project:unzip::::::::

CNA Affected

[
  {
    "product": "unzip",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "unzip 6.0"
      }
    ]
  }
]