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CVE-2024-52296— libosdp has a null pointer deref in osdp_reply_name

Quick assessment

Affected
goToMain libosdp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibOSDP是goToMain开源的一个 IEC 60839-11-5 开放式监控设备协议的跨平台开源实现。旨在提高访问控制和安全产品之间的互操作性。 LibOSDP 2.4.0之前版本存在代码问题漏洞，该漏洞源于在 ospd_common.c 的 osdp_reply_name 函数中，REPLY_ACK 和 REPLY_XRD 之间的任何回复 ID 都是有效的，但名称数组并未声明整个范围。

CVSS 6.5 · Medium EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-52296

Vulnerability Information
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Vulnerability Title
libosdp has a null pointer deref in osdp_reply_name
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
LibOSDP 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibOSDP是goToMain开源的一个 IEC 60839-11-5 开放式监控设备协议的跨平台开源实现。旨在提高访问控制和安全产品之间的互操作性。 LibOSDP 2.4.0之前版本存在代码问题漏洞，该漏洞源于在 ospd_common.c 的 osdp_reply_name 函数中，REPLY_ACK 和 REPLY_XRD 之间的任何回复 ID 都是有效的，但名称数组并未声明整个范围。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
goToMain libosdp < 2.4.0 -

II. Public POCs for CVE-2024-52296

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III. Intelligence Information for CVE-2024-52296

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IV. Related Vulnerabilities

Same product: libosdp
Same vendor: goToMain
Same weakness: CWE-476

V. Comments for CVE-2024-52296

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