PT-2020-13705 · Elliptic · Elliptic

Adelapieo · Published 2020-06-04 · Updated 2024-10-16 · CVE-2020-13822

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Name of the Vulnerable Software and Affected Versions Elliptic package versions prior to 6.5.3

Description The issue allows ECDSA signature malleability via variations in encoding, leading '0' bytes, or integer overflows. This could have a security-relevant impact if an application relied on a single canonical signature.

Recommendations For versions prior to 6.5.3, update to version 6.5.3 or later to resolve the issue. As a temporary workaround, consider restricting the use of ECDSA signatures in applications that rely on a single canonical signature until a patch is available.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2020-13822

GHSA-VH7M-P724-62C2

Affected Products

Elliptic

References · 17

• 🔥 https://github.com/indutny/elliptic/issues/226 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-13822 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-13822 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-13822 · Security Note
• https://osv.dev/vulnerability/CVE-2020-13822 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-13822 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vh7m-p724-62c2 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-13822 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-13822 · Vendor Advisory
• https://github.com/indutny/elliptic · Note
• https://github.com/indutny/elliptic/commit/856fe4d99fe7b6200556e6400b3bf585b1721bec · Note
• https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4 · Note
• https://yondon.blog/2019/01/01/how-not-to-use-ecdsa · Note
• https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4 · Note
• https://npmjs.com/package/elliptic · Note