CVE-2024-36844 Use after free in n/a
Attackers can cause a Denial of Service in libmodbus by sending a crafted message to the unit-test-server, exploiting a use-after-free vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-36844?
CVE-2024-36844 is a high-severity use after free vulnerability in n/a, published on 31 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.
Weakness: CWE-416
Which versions are affected by CVE-2024-36844?
It affects 1 product.
Products include Libmodbus Libmodbus.
How do I fix CVE-2024-36844?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-36844 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-36844 exists.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2024-36844, GHSA-2625-j643-gg22, JLSEC-2026-1255, UBUNTU-CVE-2024-36844.