CVE-2018-8319 Sensitive Data Exposure in msrcrypto

Critical 9.8 Published Updated

Incorrect arithmetic computations in the MSR JavaScript Cryptography Library allow attackers to bypass security features.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-8319?

CVE-2018-8319 is a critical vulnerability in Microsoft Research JavaScript Cryptography Library, published on 11 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-682

Which versions are affected by CVE-2018-8319?

2 open source packages ship an affected version, including msrcrypto. It affects 1 product.

PackageAffectedFixed in
msrcrypto npmAll versions1.4.1
msrcrypto npmAll versions1.4.1

Products include Microsoft Research Javascript Cryptography Library.

How do I fix CVE-2018-8319?

Upgrade msrcrypto to 1.4.1 or later.

Is CVE-2018-8319 being exploited?

There is no known exploitation of CVE-2018-8319 in the wild and no public exploit code.

Sources

Also known as GHSA-qg3g-2mgh-33j8.

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