CVE-2021-21797

CVSS V2 Medium 6.8 CVSS V3 High 7.8
Description
An exploitable double-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a reference to a timeout object to be stored in two different places. When closed, the document will result in the reference being released twice. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger this vulnerability.
Overview
  • CVE ID
  • CVE-2021-21797
  • Assigner
  • talos-cna@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-18T13:15:09
  • Last Modified Date
  • 2022-05-13T17:20:42
Weakness Enumerations
CWE URL
CWE-415 http://cwe.mitre.org/data/definitions/415.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:gonitro:nitro_pro:13.31.0.605:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:gonitro:nitro_pro:13.33.2.645:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
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://talosintelligence.com/vulnerability_reports/TALOS-2021-1266 Exploit Mitigation Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21797
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21797
History
Created Old Value New Value Data Type Notes
2022-04-20 17:01:58 Added to TrackCVE
2022-12-05 12:31:55 2021-10-18T13:15Z 2021-10-18T13:15:09 CVE Published Date updated
2022-12-05 12:31:55 2022-05-13T17:20:42 CVE Modified Date updated
2022-12-05 12:31:55 Analyzed Vulnerability Status updated