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CVE-2020-13822

Good to know:

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Date: June 4, 2020

The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.

Language: Java

Severity Score

Related Resources (11)

https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
https://www.npmjs.com/package/elliptic
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/
https://nvd.nist.gov/vuln/detail/CVE-2020-13822
https://github.com/indutny/elliptic
https://security-tracker.debian.org/tracker/CVE-2020-13822
https://github.com/indutny/elliptic/issues/226
https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
https://github.com/indutny/elliptic/commit/856fe4d99fe7b6200556e6400b3bf585b1721bec
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa
https://www.mend.io/vulnerability-database/CVE-2020-13822

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Top Fix

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Upgrade Version

Upgrade to version elliptic - 6.5.3;elliptic - 6.5.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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