Integer overflow in Indutny Elliptic
CVE-2020-13822
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.026 (84.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Indutny Elliptic — versions 6.5.2
Weakness classification (CWE)
References
- www.npmjs.com/package/elliptic (Third Party Advisory)
- github.com/indutny/elliptic/issues/226 (Exploit, Third Party Advisory)
- yondon.blog/2019/01/01/how-not-to-use-ecdsa/ (Third Party Advisory)
- medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
Frequently asked questions
- What is CVE-2020-13822?
- CVE-2020-13822 is a high-severity vulnerability in Indutny Elliptic, classified under Integer Overflow or Wraparound. CVSS score: 7.7/10. Published 2020-06-04.
- How severe is CVE-2020-13822?
- High severity. CVSS v3 base score is 7.7 out of 10.