Integer Overflow Affecting pywin32 package, versions [,301)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (57th percentile)

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  • Snyk IDSNYK-PYTHON-PYWIN32-1316226
  • published6 Jul 2021
  • disclosed6 Jul 2021
  • creditJoshua Triplett, Doug McClouds, Chris Ingram, Andrew Tappert

Introduced: 6 Jul 2021

CVE-2021-32559  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade pywin32 to version 301 or higher.

Overview

pywin32 is a Python for Window Extensions.

Affected versions of this package are vulnerable to Integer Overflow. An integer overflow exists when adding an access control entry (ACE) to an access control list (ACL) that can cause the size to be greater than 65535 bytes. This can lead an attacker to be able to crash the process and a DoS.

CVSS Base Scores

version 3.1