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Integer Overflow or Wraparound Affecting commonmarker package, versions <0.23.4

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 5.47% (94th percentile)
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NVD
9.8 critical
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Red Hat
8.8 high

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  • Snyk ID SNYK-RUBY-COMMONMARKER-2415031
  • published 4 Mar 2022
  • disclosed 3 Mar 2022
  • credit Felix Wilhelm
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Introduced: 3 Mar 2022

CVE-2022-24724 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade commonmarker to version 0.23.4 or higher.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound in table-row parsing, when parsing marker rows that contain more than UINT16_MAX columns.

Note If affected versions are used for rendering remote user-controlled markdown, this vulnerability may lead to Remote Code Execution (RCE).

Workaround

The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling any use of the table extension will prevent this vulnerability from being triggered.