Vulnerability-Lookup

PYSEC-2026-1534

Vulnerability from pysec - Published: 2026-07-07 11:45 - Updated: 2026-07-07 11:45

Details

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

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impacted products

Name	purl
libosdp	pkg:pypi/libosdp

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "libosdp",
        "purl": "pkg:pypi/libosdp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-52296",
    "GHSA-7945-5mcv-f2pp"
  ],
  "details": "### 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] == \u0027\\0\u0027)` 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",
  "id": "PYSEC-2026-1534",
  "modified": "2026-07-07T11:45:34.729113Z",
  "published": "2026-07-07T11:45:34.729113Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/goToMain/libosdp/security/advisories/GHSA-7945-5mcv-f2pp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52296"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goToMain/libosdp/commit/24409e98a260176765956ec766a04cb35984fab1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/goToMain/libosdp"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/libosdp"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-7945-5mcv-f2pp"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LibOSDP vulnerable to a null pointer deref in osdp_reply_name"
}

CVE-2024-52296 (GCVE-0-2024-52296)

Vulnerability from cvelistv5 – Published: 2024-11-12 15:58 – Updated: 2024-11-19 17:01

Title

libosdp has a null pointer deref in osdp_reply_name

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-19 17:01 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/goToMain/libosdp/security/advi…	x_refsource_CONFIRM
https://github.com/goToMain/libosdp/commit/24409e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
goToMain	libosdp	Affected: < 2.4.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-52296",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-19T17:01:45.739953Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-19T17:01:59.287Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libosdp",
          "vendor": "goToMain",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.4.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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] == \u0027\\0\u0027) 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-12T15:58:28.434Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/goToMain/libosdp/security/advisories/GHSA-7945-5mcv-f2pp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/goToMain/libosdp/security/advisories/GHSA-7945-5mcv-f2pp"
        },
        {
          "name": "https://github.com/goToMain/libosdp/commit/24409e98a260176765956ec766a04cb35984fab1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/goToMain/libosdp/commit/24409e98a260176765956ec766a04cb35984fab1"
        }
      ],
      "source": {
        "advisory": "GHSA-7945-5mcv-f2pp",
        "discovery": "UNKNOWN"
      },
      "title": "libosdp has a null pointer deref in osdp_reply_name"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-52296",
    "datePublished": "2024-11-12T15:58:28.434Z",
    "dateReserved": "2024-11-06T19:00:26.395Z",
    "dateUpdated": "2024-11-19T17:01:59.287Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-7945-5MCV-F2PP

Vulnerability from github – Published: 2024-03-08 17:33 – Updated: 2024-11-12 21:32

Summary

LibOSDP vulnerable to a null pointer deref in osdp_reply_name

Details

Issue:

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

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "libosdp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-52296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-08T17:33:46Z",
    "nvd_published_at": "2024-11-12T16:15:26Z",
    "severity": "MODERATE"
  },
  "details": "### 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] == \u0027\\0\u0027)` 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",
  "id": "GHSA-7945-5mcv-f2pp",
  "modified": "2024-11-12T21:32:15Z",
  "published": "2024-03-08T17:33:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/goToMain/libosdp/security/advisories/GHSA-7945-5mcv-f2pp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52296"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goToMain/libosdp/commit/24409e98a260176765956ec766a04cb35984fab1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/goToMain/libosdp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LibOSDP vulnerable to a null pointer deref in osdp_reply_name"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

PYSEC-2026-1534

Issue:

Attack:

Impact

Patch

CVE-2024-52296 (GCVE-0-2024-52296)

GHSA-7945-5MCV-F2PP

Issue:

Attack:

Impact

Patch

Tags

Sightings

Nomenclature

Related by attack behaviour