{"id":"CVE-2024-52296","aliases":["EUVD-2024-0856","GHSA-7945-5mcv-f2pp","PYSEC-2026-1534"],"status":"published","title":"libosdp has a null pointer deref in osdp_reply_name","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00347,"percentile":0.28559,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2024-03-08T17:33:46Z","modified":"2026-10-28T10:51:39Z","fixes":[{"ecosystem":"PyPI","package":"libosdp","fixed_in":["2.4.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"libosdp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"libosdp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"libosdp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0"}]}]}],"products":[{"vendor":"gotomain","product":"libosdp"}],"references":[{"url":"https://github.com/goToMain/libosdp/security/advisories/GHSA-7945-5mcv-f2pp","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/goToMain/libosdp/commit/24409e98a260176765956ec766a04cb35984fab1","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-52296","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7945-5mcv-f2pp","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52296.json","tags":["advisory"]},{"url":"https://github.com/goToMain/libosdp","tags":["package"]},{"url":"https://pypi.org/project/libosdp","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-52296","title":"libosdp has a null pointer deref in osdp_reply_name","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.","status":"published","published":"2024-11-12T15:58:28.434Z","modified":"2024-11-19T17:01:59.287Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:34:03.333404Z"}],"euvd":[{"id":"EUVD-2024-0856","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.","status":"published","published":"2024-11-12T15:58:28Z","modified":"2024-11-19T17:01:59Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:56.132572Z"}],"ghsa":[{"id":"GHSA-7945-5mcv-f2pp","title":"LibOSDP vulnerable to a null pointer deref in osdp_reply_name","description":"### Issue:\nAt 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.\n\n### Attack:\nAs this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge.\n\n### Impact\nDenial of Service\n\n### Patch\nThe issue has been patched in 24409e98a260176765956ec766a04cb35984fab1\n","status":"published","published":"2024-03-08T17:33:46Z","modified":"2024-11-12T21:32:18Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:38:17.357217Z"}],"nvd":[{"id":"CVE-2024-52296","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.","status":"published","published":"2024-11-12T16:15:26.03Z","modified":"2026-06-17T08:06:57.68Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:10:36.931115Z"}],"osv":[{"id":"CVE-2024-52296","title":"libosdp has a null pointer deref in osdp_reply_name","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.","status":"published","published":"2024-11-12T15:58:28.434Z","modified":"2026-10-28T10:51:39.932124632Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:44:44.032344Z"},{"id":"GHSA-7945-5mcv-f2pp","title":"LibOSDP vulnerable to a null pointer deref in osdp_reply_name","description":"### Issue:\nAt 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.\n\n### Attack:\nAs this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge.\n\n### Impact\nDenial of Service\n\n### Patch\nThe issue has been patched in 24409e98a260176765956ec766a04cb35984fab1\n","status":"published","published":"2024-03-08T17:33:46Z","modified":"2026-07-07T17:56:41.141854292Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"PYSEC-2026-1534","title":"LibOSDP vulnerable to a null pointer deref in osdp_reply_name","description":"### Issue:\nAt 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.\n\n### Attack:\nAs this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge.\n\n### Impact\nDenial of Service\n\n### Patch\nThe issue has been patched in 24409e98a260176765956ec766a04cb35984fab1\n","status":"published","published":"2026-07-07T11:45:34.729113Z","modified":"2026-07-07T17:46:51.29468425Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:55.06457Z"}]}}