Suricata’s mishandling of data on HTTP2 stream 0 can lead to resource starvation_CVE-2025-53538

{
    "lastseen": "",
    "description": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions 7.0.10 and below and  8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream 0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser, and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid: 1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in versions 7.0.11 and 8.0.0.",
    "published": "2025-07-22T21:36:03.976Z",
    "modified": "2025-07-23T18:32:21.856Z",
    "type": "cve",
    "title": "Suricata's mishandling of data on  HTTP2 stream 0 can lead to resource starvation",
    "source": "GitHub_M",
    "references": "https://github.com/OISF/suricata/security/advisories/GHSA-qrr7-crgj-cmh3\nhttps://github.com/OISF/suricata/commit/1d6d331752e933c46aca0ae7a9679b27462246e3\nhttps://github.com/OISF/suricata/commit/7fa88ea9e7d05e07a7864050cfd836b576669720",
    "id": "CVE-2025-53538",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770",
        "CWE-400"
    ],
    "cvelist": null,
    "sourceData": "OISF suricata < 7.0.11\nOISF suricata >= 8.0.0-beta1, < 8.0.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "suricata",
    "version": "< 7.0.11",
    "vendor": "OISF",
    "ai_description": "",
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    "ai_score": 0
}