CVE-2024-52296Medium· 6.5▾ SunlitLibOSDP vulnerable to a null pointer deref in osdp_reply_name
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.3%
0.3% → 0.3%
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.
Denial of Service
The issue has been patched in 24409e98a260176765956ec766a04cb35984fab1
libosdp < 2.4.0Upgrade to a patched release:
libosdp 2.4.0Connected by shared product, vendor, weakness, or advisory.