CVE-2023-49552 Memory corruption in n/a
A remote attacker can cause a denial of service in the Cesanta MJS library via an out-of-bounds write in the JSON stringify function.
- 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-2023-49552?
CVE-2023-49552 is a high-severity memory corruption 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 Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.
Which versions are affected by CVE-2023-49552?
It affects 1 product.
Products include Cesanta Mjs.
How do I fix CVE-2023-49552?
No fix has been published for CVE-2023-49552 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-49552 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-49552 exists.
Other vulnerabilities in Cesanta Mjs
Sources
Also known as GHSA-f6jr-7pgg-f497, UBUNTU-CVE-2023-49552.