Inefficient Algorithmic Complexity Affecting libtasn1 package, versions [,4.20.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-UNMANAGED-LIBTASN1-8717117
  • published12 Feb 2025
  • disclosed10 Feb 2025
  • creditBing Shi

Introduced: 10 Feb 2025

NewCVE-2024-12133  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade libtasn1 to version 4.20.0 or higher.

Overview

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity due to inefficient DER decoding. An attacker can cause a denial of service by sending a certificate with a large number of Subject Alternative Name or name constraint entries.

CVSS Scores

version 4.0
version 3.1