Buffer Overflow Affecting cgi Open this link in a new tab package, versions <0.3.1 >=0.2.0, <0.2.1 >=0.1.0, <0.1.1

  • Exploit Maturity

    Proof of concept

  • Attack Complexity


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  • snyk-id


  • published

    25 Nov 2021

  • disclosed

    25 Nov 2021

  • credit


How to fix?

Upgrade cgi to version 0.3.1, 0.2.1, 0.1.1 or higher.


cgi is a Support for the Common Gateway Interface protocol.

Affected versions of this package are vulnerable to Buffer Overflow when a very large string (> 700 MB) is passed to CGI.escape_html on a platform where long type takes 4 bytes.