TI-2024-34971 Aliases CVE-2024-52296 GHSA-7945-5mcv-f2pp

libosdp has a null pointer deref in osdp_reply_name

LOW 29CWE-476Published 2024-11-12 · Updated 2024-11-19

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00347 28th percentileScored 2026-11-07

Fix Fixed libosdp (goToMain): 2.4.0libosdp (PyPI): 2.4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
goToMain	libosdp	before 2.4.0	2.4.0	Patch available	CNA
—	libosdp (PyPI)	before 2.4.0	2.4.0	Patch available	GHSA-7945-5mcv-f2pp

libosdp VendorgoToMain Affected before 2.4.0 Fixed in 2.4.0 Patch available CNA
libosdp (PyPI) Vendor— Affected before 2.4.0 Fixed in 2.4.0 Patch available GHSA-7945-5mcv-f2pp

Remediation

Fix · CNA libosdp (goToMain) Fixed in 2.4.0
Fix · GHSA-7945-5mcv-f2pp libosdp (PyPI) Fixed in 2.4.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2024-52296
2026-10-03 Alias added: GHSA-7945-5mcv-f2pp

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2024-52296

Other 3

TI-2024-34963 RMAC revert to the beginning of the session in libosdp CVSS 3.1MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences