CVE-2024-38372 Undici vulnerable to data leak when using response.arrayBuffer()

Low 2.0 Published Updated

Undici HTTP client may leak process memory via response.arrayBuffer(), allowing attackers to read sensitive data.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-38372?

CVE-2024-38372 is a low-severity vulnerability in nodejs undici, published on 8 Jul 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a `fetch()` request, `response.arrayBuffer()` might include portion of memory from the Node.js process. This has been patched in v6.19.2.

Weakness: CWE-201

Which versions are affected by CVE-2024-38372?

2 open source packages ship an affected version, including undici.

PackageAffectedFixed in
undici npmFrom 6.14.06.19.2
undici npmFrom 6.14.06.19.2

How do I fix CVE-2024-38372?

Upgrade undici to 6.19.2 or later.

Is CVE-2024-38372 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-38372 exists.

Sources

Also known as GHSA-3g92-w8c5-73pq, ROOT-APP-NPM-CVE-2024-38372, UBUNTU-CVE-2024-38372.

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