CVE-2024-0962 obgm libcoap Configuration File coap_oscore.c get_split_entry stack-based overflow

Medium 6.3 Published Updated

A stack-based buffer overflow in libcoap allows remote attackers to execute arbitrary code or cause denial of service via crafted configuration files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-0962?

CVE-2024-0962 is a medium-severity memory corruption vulnerability in obgm libcoap, published on 27 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical. Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler. The manipulation leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-252206 is the identifier assigned to this vulnerability.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2024-0962?

It affects 1 product.

Products include Libcoap Libcoap.

How do I fix CVE-2024-0962?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-0962 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0962 exists.

Sources

Also known as DEBIAN-CVE-2024-0962, GHSA-7qg3-c5c5-86rv, UBUNTU-CVE-2024-0962.

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