CVE-2023-49550 Denial of service in n/a

High 7.5 Published Updated

A remote attacker can cause a denial of service in the Cesanta MJS JavaScript engine library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-49550?

CVE-2023-49550 is a high-severity denial of service vulnerability in Cesanta Mjs, published on 2 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs+0x4ec508 component.

Weakness: CWE-400

Which versions are affected by CVE-2023-49550?

It affects 1 product.

Products include Cesanta Mjs.

How do I fix CVE-2023-49550?

No fix has been published for CVE-2023-49550 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-49550 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-49550 exists.

All Cesanta Mjs vulnerabilities

Sources

Also known as GHSA-5mfr-vx4f-m7q7, UBUNTU-CVE-2023-49550.

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