musl libc GB18030 4-byte Decoder iconv.c iconv algorithmic complexity_CVE-2026-6042

{
    "lastseen": "",
    "description": "A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.",
    "published": "2026-04-10T09:00:18.733Z",
    "modified": "2026-04-10T15:54:06.200Z",
    "type": "cve",
    "title": "musl libc GB18030 4-byte Decoder iconv.c iconv algorithmic complexity",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/356620\nhttps://vuldb.com/vuln/356620/cti\nhttps://vuldb.com/submit/796352\nhttps://www.openwall.com/lists/oss-security/2026/04/02/10\nhttps://www.openwall.com/lists/oss-security/2026/04/03/2",
    "id": "CVE-2026-6042",
    "bulletinFamily": "",
    "cwe": [
        "CWE-407",
        "CWE-404"
    ],
    "cvelist": null,
    "sourceData": "musl libc 1.2.0\nmusl libc 1.2.1\nmusl libc 1.2.2\nmusl libc 1.2.3\nmusl libc 1.2.4\nmusl libc 1.2.5\nmusl libc 1.2.6",
    "sourceHref": "",
    "cvss": {
        "score": 4.8,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X",
        "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": "libc",
    "version": "1.2.0",
    "vendor": "musl",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}