{
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                "id": "CVE-2025-29913",
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          "vendor": "nasa",
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          "value": "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_TC_Prep_AAD` 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 telecommand (TC) frame that causes an unsigned integer underflow. The vulnerability lies in the function `Crypto_TC_Prep_AAD`, specifically during the computation of `tc_mac_start_index`. The affected code incorrectly calculates the MAC start index without ensuring it remains within the bounds of the `ingest` buffer. When `tc_mac_start_index` underflows due to an incorrect length calculation, the function attempts to access an out-of-bounds memory location, leading to a segmentation fault. The vulnerability is still present in the repository as of commit `d3cc420ace96d02a5b7e83d88cbd2e48010d5723`."
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
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              "description": "CWE-125: Out-of-bounds Read",
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          "tags": [
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          "url": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-q4v2-fvrv-qrf6"
        }
      ],
      "source": {
        "advisory": "GHSA-q4v2-fvrv-qrf6",
        "discovery": "UNKNOWN"
      },
      "title": "CryptoLib\u0027s Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer Underflow"
    }
  },
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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-29913",
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    "dateReserved": "2025-03-12T13:42:22.135Z",
    "dateUpdated": "2025-03-18T14:07:35.486Z",
    "state": "PUBLISHED"
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