Heap-buffer-overflow write in FFmpeg SANM decoding due to lack of bounds-checking in old_codec48_CVE-2025-59730

{
    "lastseen": "",
    "description": "When decoding a frame for a SANM file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it.\n\nFrames encoded with codec 48 can specify their resolution (width x height). A buffer of appropriate size is allocated depending on the resolution.\n\nThis codec can encode the frame contents using a run-length encoding algorithm. There are no checks that the decoded frame fits in the allocated buffer, leading to a heap-buffer-overflow.\n\nprocess_frame_obj\u00a0initializes the buffers based on the frame resolution:\n\n\n\nWe recommend upgrading to version 8.0 or beyond.",
    "published": "2025-10-06T08:09:11.029Z",
    "modified": "2025-10-06T08:09:11.029Z",
    "type": "cve",
    "title": "Heap-buffer-overflow write in FFmpeg SANM decoding due to lack of bounds-checking in old_codec48",
    "source": "Google",
    "references": "https://issuetracker.google.com/434637586",
    "id": "CVE-2025-59730",
    "bulletinFamily": "",
    "cwe": [
        "CWE-787"
    ],
    "cvelist": null,
    "sourceData": "FFmpeg FFmpeg 829680f96a7a7ff02d1543895ec0fb713309d5c0",
    "sourceHref": "",
    "cvss": {
        "score": 5.7,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/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": "FFmpeg",
    "version": "829680f96a7a7ff02d1543895ec0fb713309d5c0",
    "vendor": "FFmpeg",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}