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CVE-2022-21670

ADVISORY - github

Summary

Impact

Special patterns with length > 50K chars can slow down parser significantly.

const md = require('markdown-it')();

md.render(`x ${' '.repeat(150000)} x  \nx`);

Patches

Upgrade to v12.3.2+

Workarounds

No.

References

Fix + test sample: https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101

EPSS Score⁠: 0.01114 (0.785)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-1333⁠

Inefficient Regular Expression Complexity

CWE-400⁠

Uncontrolled Resource Consumption

ADVISORY - github

CWE-1333⁠

Inefficient Regular Expression Complexity

CWE-400⁠

Uncontrolled Resource Consumption

ADVISORY - gitlab

CWE-1035⁠

OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities

CWE-1333⁠

Inefficient Regular Expression Complexity

CWE-937⁠

OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities

Impacted images

Advisories

NIST

CREATED

UPDATED

ADVISORY IDCVE-2022-21670⁠
EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND
COMMON WEAKNESS ENUMERATION (CWE)
CWE-1333⁠CWE-400⁠

CVSS SCORE

5.3medium

GitHub

CREATED

UPDATED

ADVISORY IDGHSA-6vfc-qv3f-vr6c⁠
EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CWE-1333⁠CWE-400⁠

CVSS SCORE

5.3medium

Debian

CREATED

UPDATED

ADVISORY IDCVE-2022-21670⁠
EXPLOITABILITY SCORE

-

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
RATING UNAVAILABLE FROM ADVISORY

Ubuntu

CREATED

UPDATED

ADVISORY IDCVE-2022-21670⁠
EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

5.3low

GitLab

CREATED

UPDATED

ADVISORY ID

CVE-2022-21670

EXPLOITABILITY SCORE

3.9

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CWE-1035⁠CWE-1333⁠CWE-937⁠

CVSS SCORE

5.3medium

intheWild

CREATED

UPDATED

ADVISORY IDCVE-2022-21670⁠
EXPLOITABILITY SCORE

-

EXPLOITS FOUND

-

COMMON WEAKNESS ENUMERATION (CWE)-
RATING UNAVAILABLE FROM ADVISORY