GHSA-j4mr-9xw3-c9jx Out-of-bounds Read in base64-url

Not scored Published

An out-of-bounds read vulnerability in the base64-url library allows attackers to disclose sensitive memory contents by passing numeric inputs.

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

What is GHSA-j4mr-9xw3-c9jx?

GHSA-j4mr-9xw3-c9jx is a vulnerability in base64-url, published on 31 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Versions of base64-url before 2.0.0 are vulnerable to out-of-bounds read as it allocates uninitialized Buffers when number is passed in input.

Recommendation

Update to version 2.0.0 or later.

Which versions are affected by GHSA-j4mr-9xw3-c9jx?

2 open source packages ship an affected version, including base64-url.

PackageAffectedFixed in
base64-url npmAll versions2.0.0
base64-url npmAll versions2.0.0

How do I fix GHSA-j4mr-9xw3-c9jx?

Upgrade base64-url to 2.0.0 or later.

Is GHSA-j4mr-9xw3-c9jx being exploited?

There is no known exploitation of GHSA-j4mr-9xw3-c9jx in the wild and no public exploit code.

Sources

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