CVE-2021-32559

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process.
Overview
  • CVE ID
  • CVE-2021-32559
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-06T12:15:21
  • Last Modified Date
  • 2021-09-14T14:40:55
Weakness Enumerations
CWE URL
CWE-190 http://cwe.mitre.org/data/definitions/190.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:pywin32_project:pywin32:*:*:*:*:*:*:*:* 1 OR b301
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/mhammond/pywin32/releases Release Notes Third Party Advisory
https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md Third Party Advisory
https://github.com/mhammond/pywin32/issues/1700 Patch Third Party Advisory
https://github.com/mhammond/pywin32/pull/1701 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-32559
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32559
History
Created Old Value New Value Data Type Notes
2022-05-10 16:05:32 Added to TrackCVE
2022-12-05 05:26:50 2021-07-06T12:15Z 2021-07-06T12:15:21 CVE Published Date updated
2022-12-05 05:26:50 2021-09-14T14:40:55 CVE Modified Date updated
2022-12-05 05:26:50 Analyzed Vulnerability Status updated