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GHSA-9x9j-836w-8f55

Incorrect Calculation in the MSR JavaScript Cryptography Library

Source: GitHub Advisory Database (reviewed) High CVE-2020-1026

Packages

EcosystemPackageAffectedFixed in
npm msrcrypto < 1.5.8 1.5.8

Details

As written in the advisory (Markdown source, shown as plain text).

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library's Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server's private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka `MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability`.

References

External links from the advisory. They lead to third-party sites.