{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "309c1c4a57313044215ca730abfa3fbe9e5feed0"
            }
          ],
          "repo": "https://github.com/nasa/cryptolib",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-w6c3-pxvr-6m6j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-121"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64096.json"
  },
  "details": "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. Prior to 1.4.2, there is a missing bounds check in Crypto_Key_update() (crypto_key_mgmt.c) which allows a remote attacker to trigger a stack-based buffer overflow by supplying a TLV packet with a spoofed length field. The function calculates the number of keys from an attacker-controlled field (pdu_len), which may exceed the static array size (kblk[98]), leading to an out-of-bounds write and potential memory corruption. This vulnerability is fixed in 1.4.2.",
  "id": "CVE-2025-64096",
  "modified": "2026-03-13T21:55:27.626211344Z",
  "published": "2025-10-30T17:09:24.240Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64096.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-w6c3-pxvr-6m6j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64096"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check"
}