Versions of msrcrypto prior to 1.4.1 are vulnerable to Sensitive Data Exposure. The package's Elliptic Curve Cryptography (ECC) implementation may leak information about a server's private ECC key. It can also allow attackers to craft invalid ECDSA signatures that pass as valid. There is no published proof-of-concept for this vulnerability.

Recommendation

Upgrade to version 1.4.1 or later.

References

• https://nvd.nist.gov/vuln/detail/CVE-2018-8319
• GHSA-qg3g-2mgh-33j8
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8319
• https://www.npmjs.com/advisories/1112
• http://www.securityfocus.com/bid/104655
• http://www.securitytracker.com/id/1041268