Denial of Service (DoS) Affecting libtasn1 package, versions [0,4.16.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.01% (79th percentile)

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  • Snyk IDSNYK-UNMANAGED-LIBTASN1-2397228
  • published26 Jan 2022
  • disclosed20 Aug 2018
  • creditUnknown

Introduced: 20 Aug 2018

CVE-2018-1000654  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade libtasn1 to version 4.16.0 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.

CVSS Base Scores

version 3.1