CVE-2020-36367 Denial of service in n/a

Medium 5.5 Published Updated

Remote attackers can cause a denial of service in Cesanta MJS via a crafted file triggering a stack overflow.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-36367?

CVE-2020-36367 is a medium-severity denial of service vulnerability in Cesanta Mjs, published on 28 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Stack overflow vulnerability in parse_block Cesanta MJS 1.20.1, allows remote attackers to cause a Denial of Service (DoS) via a crafted file.

Weakness: CWE-674

Which versions are affected by CVE-2020-36367?

It affects 1 product.

Products include Cesanta Mjs.

How do I fix CVE-2020-36367?

No fix has been published for CVE-2020-36367 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-2020-36367 being exploited?

There is no known exploitation of CVE-2020-36367 in the wild and no public exploit code.

All Cesanta Mjs vulnerabilities

Sources

Also known as GHSA-7pq9-88wq-86vv.

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