SIPGO library has response DoS vulnerability via nil pointer dereference_CVE-2025-68274

{
    "lastseen": "",
    "description": "SIPGO is a library for writing SIP services in the GO language. Starting in version 0.3.0 and prior to version 1.0.0-alpha-1, a nil pointer dereference vulnerability is in the SIPGO library's `NewResponseFromRequest` function that affects all normal SIP operations. The vulnerability allows remote attackers to crash any SIP application by sending a single malformed SIP request without a To header. The vulnerability occurs when SIP message parsing succeeds for a request missing the To header, but the response creation code assumes the To header exists without proper nil checks. This affects routine operations like call setup, authentication, and message handling - not just error cases. This vulnerability affects all SIP applications using the sipgo library, not just specific configurations or edge cases, as long as they make use of the `NewResponseFromRequest` function. Version 1.0.0-alpha-1 contains a patch for the issue.",
    "published": "2025-12-16T22:02:55.360Z",
    "modified": "2025-12-16T22:02:55.360Z",
    "type": "cve",
    "title": "SIPGO library has response DoS vulnerability via nil pointer dereference",
    "source": "GitHub_M",
    "references": "https://github.com/emiago/sipgo/security/advisories/GHSA-c623-f998-8hhv\nhttps://github.com/emiago/sipgo/commit/dc9669364a154ec6d134e542f6a63c31b5afe6e8",
    "id": "CVE-2025-68274",
    "bulletinFamily": "",
    "cwe": [
        "CWE-476",
        "CWE-755"
    ],
    "cvelist": null,
    "sourceData": "emiago sipgo >= v0.3.0, < v1.0.0-alpha-1",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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,
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "sipgo",
    "version": ">= v0.3.0, < v1.0.0-alpha-1",
    "vendor": "emiago",
    "ai_description": "Nil pointer dereference vulnerability in SIPGO library's NewResponseFromRequest function allows remote attackers to crash SIP applications via a single malformed SIP request without a To header.",
    "ai_severity": "High",
    "ai_vendor": "emiago",
    "ai_product": "SIPGO",
    "ai_version": "0.3.0 to 1.0.0-alpha-1",
    "ai_score": 8.7
}