CVE-2021-4217

CVSS V2 None CVSS V3 High 7.8
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.
Overview
  • CVE ID
  • CVE-2021-4217
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-08-24T16:15:10
  • Last Modified Date
  • 2022-11-29T15:45:16
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:unzip_project:unzip:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077
https://bugzilla.redhat.com/show_bug.cgi?id=2044583
https://access.redhat.com/security/cve/CVE-2021-4217
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4217
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4217
History
Created Old Value New Value Data Type Notes
2022-08-24 17:00:14 Added to TrackCVE
2022-12-06 14:34:48 2022-11-29T15:45:16 CVE Modified Date updated
2022-12-06 14:34:48 Undergoing Analysis Analyzed Vulnerability Status updated