CryptoLib Has Heap Buffer Overflow in Crypto_AOS_ProcessSecurity Function

{
  "id": "d53969a582c6612ce592331eef1d6b6743f66a2492538031c747e030e07128fa",
  "url": "https://osv.dev/vulnerability/CVE-2025-29911",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CryptoLib Has Heap Buffer Overflow in Crypto_AOS_ProcessSecurity Function",
    "summary": "CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. A critical heap buffer overflow vulnerability was identified in the `Crypto_AOS_ProcessSecurity` function of CryptoLib versions 1.3.3 and prior. This vulnerability allows an attacker to trigger a Denial of Service (DoS) or potentially execute arbitrary code (RCE) by providing a maliciously crafted AOS frame with an insufficient length. The vulnerability lies in the function `Crypto_AOS_ProcessSecurity`, specifically during the processing of the Frame Error Control Field (FECF). The affected code attempts to read from the `p_ingest` buffer at indices `current_managed_parameters_struct.max_frame_size - 2` and `current_managed_parameters_struct.max_frame_size - 1` without verifying if `len_ingest` is sufficiently large. This leads to a heap buffer overflow when `len_ingest` is smaller than `max_frame_size`. As of time of publication, no known patched versions exist.",
    "evidence": "osv:CVE-2025-29911",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-29911",
      "aliases": [
        "CVE-2025-29911",
        "GHSA-7g6g-9gj4-8c68"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nasa/cryptolib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "c09fdc2b3207a93c401c6344ad5363e8d585a817"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.3.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.3.3"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-29911.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.020161295Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29911.json",
        "https://github.com/nasa/CryptoLib/security/advisories/GHSA-7g6g-9gj4-8c68",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-29911"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-122"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29911.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-29911",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488137,
  "published_at": "2025-03-17T22:20:15.289+00:00"
}