GitHub Advisoryadvisory · PyPI

GHSA-7945-5mcv-f2pp LibOSDP vulnerable to a null pointer deref in osdp_reply_name

MEDIUM Published 2024-03-08 Modified 2024-11-12 Official page ↗
Aliases
CVE-2024-52296
Ecosystem
PyPI
Packages
libosdp
Severity
Moderate
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476
Reviewed
2024-03-08

Affected packages

• PyPI libosdp: < 2.4.0 → fixed in 2.4.0

Description

Issue: 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. Attack: As this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge. Impact Denial of Service Patch The issue has been patched in 24409e98a260176765956ec766a04cb35984fab1

Related

Alias · CVE (1)

  • CVE-2024-52296 libosdp is an implementation of IEC 60839-11-5 OSDP (Open Supervised Device Protocol) and provides a C library with support for C++, Rust… vulnerability

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References