CryptoLib Vulnerable to Heap Buffer Overflow in MariaDB SA Hexstring Conversion_CVE-2026-22027

{
    "lastseen": "",
    "description": "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 version 1.4.3, the convert_hexstring_to_byte_array() function in the MariaDB SA interface writes decoded bytes into a caller-provided buffer without any capacity check. When importing SA fields from the database (e.g., IV, ARSN, ABM), a malformed or oversized hex string in the database can overflow the destination buffer, corrupting adjacent heap memory. This issue has been patched in version 1.4.3.",
    "published": "2026-01-10T00:24:58.903Z",
    "modified": "2026-01-10T00:24:58.903Z",
    "type": "cve",
    "title": "CryptoLib Vulnerable to Heap Buffer Overflow in MariaDB SA Hexstring Conversion",
    "source": "GitHub_M",
    "references": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-3m35-m689-h29x\nhttps://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d\nhttps://github.com/nasa/CryptoLib/releases/tag/v1.4.3",
    "id": "CVE-2026-22027",
    "bulletinFamily": "",
    "cwe": [
        "CWE-122"
    ],
    "cvelist": null,
    "sourceData": "nasa CryptoLib < 1.4.3",
    "sourceHref": "",
    "cvss": {
        "score": 5.7,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "CryptoLib",
    "version": "< 1.4.3",
    "vendor": "nasa",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}