Sensitive Data Exposure in msrcrypto

緊急 9.8CVE-2018-8319 · GHSA-qg3g-2mgh-33j8 · 11/07/2018 公開 · 17/06/2026 更新

要点

CVE-2018-8319 は research javascript cryptography library (microsoft), msrcrypto に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：7.7%（全脆弱性の 94.6% より高い）。
対処：1.4.1 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
research javascript cryptography library microsoft	`= 1.4`	修正版なし
msrcrypto npm	`< 1.4.1`	`1.4.1`

概要

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.

NVD の説明

A Security Feature Bypass vulnerability exists in MSR JavaScript Cryptography Library that is caused by incorrect arithmetic computations, aka "MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability." This affects Microsoft Research JavaScript Cryptography Library.