PT-2018-18553 · Microsoft · Msr Javascript Cryptography Library

Colin Mcrae + 2 · Published 2018-07-11 · Updated 2018-09-10 · CVE-2018-8319

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions MSR JavaScript Cryptography Library versions prior to 1.4.1

Description A Security Feature Bypass issue exists due to incorrect arithmetic computations. This affects the Elliptic Curve Cryptography (ECC) implementation, potentially leaking information about a server's private ECC key and allowing attackers to craft invalid ECDSA signatures that pass as valid.

Recommendations Upgrade to version 1.4.1 or later.

Fix

Weakness Enumeration

CWE-682

Related Identifiers

CVE-2018-8319

GHSA-QG3G-2MGH-33J8

Affected Products

Msr Javascript Cryptography Library

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2018-8319 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8319 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-qg3g-2mgh-33j8 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-8319 · Vendor Advisory
• http://securityfocus.com/bid/104655 · Note
• https://github.com/advisories/GHSA-qg3g-2mgh-33j8 · Note
• http://securitytracker.com/id/1041268 · Note
• https://npmjs.com/advisories/1112 · Note