CVE-2023-29569 Null dereference in n/a

Medium 5.5 Published Updated

A null pointer dereference in Cesanta MJS allows attackers to cause a denial of service via crafted FFI calls.

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-2023-29569?

CVE-2023-29569 is a medium-severity vulnerability in Cesanta Mjs, published on 14 Apr 2023. 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

Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via ffi_cb_impl_wpwwwww at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).

Weakness: CWE-476

Which versions are affected by CVE-2023-29569?

It affects 1 product.

Products include Cesanta Mjs.

How do I fix CVE-2023-29569?

No fix has been published for CVE-2023-29569 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-29569 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29569 exists.

All Cesanta Mjs vulnerabilities

Sources

Also known as GHSA-vrq5-53cv-ff3x.

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