CVE-2024-52296 libosdp has a null pointer deref in osdp_reply_name
An attacker can cause a denial of service in libosdp by triggering a null pointer dereference in the osdp_reply_name function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-52296?
CVE-2024-52296 is a medium-severity vulnerability in goToMain libosdp, published on 12 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libosdp is an implementation of IEC 60839-11-5 OSDP (Open Supervised Device Protocol) and provides a C library with support for C++, Rust and Python3. At ospd_common.c, on the osdp_reply_name function, any reply id between REPLY_ACK and REPLY_XRD is valid, but names array do not declare all of the range. On a case of an undefined reply id within the range, name will be null (name = names[reply_id - REPLY_ACK];). Null name will casue a crash on next line: if (name[0] == '\0') as null[0] is invalid. As this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge. This issue is fixed in 2.4.0.
Weakness: CWE-476
Which versions are affected by CVE-2024-52296?
3 open source packages ship an affected version, including libosdp.
| Package | Affected | Fixed in |
|---|---|---|
libosdp PyPI | All versions | 2.4.0 |
libosdp PyPI | All versions | 2.4.0 |
libosdp PyPI | All versions | 2.4.0 |
How do I fix CVE-2024-52296?
Upgrade libosdp to 2.4.0 or later.
Is CVE-2024-52296 being exploited?
There is no known exploitation of CVE-2024-52296 in the wild and no public exploit code.
Sources
Also known as GHSA-7945-5mcv-f2pp, PYSEC-2026-1534.