cvelist/2021/21xxx/CVE-2021-21409.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-21409",
        "STATE": "PUBLIC",
        "TITLE": "Possible request smuggling in HTTP/2 due missing validation of content-length"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "netty",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 4.1.61.Final"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "netty"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32",
                "refsource": "CONFIRM",
                "url": "https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32"
            },
            {
                "name": "https://github.com/netty/netty/security/advisories/GHSA-wm47-8v5p-wjpj",
                "refsource": "MISC",
                "url": "https://github.com/netty/netty/security/advisories/GHSA-wm47-8v5p-wjpj"
            },
            {
                "name": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21295",
                "refsource": "MISC",
                "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21295"
            },
            {
                "name": "https://github.com/netty/netty/commit/b0fa4d5aab4215f3c22ce6123dd8dd5f38dc0432",
                "refsource": "MISC",
                "url": "https://github.com/netty/netty/commit/b0fa4d5aab4215f3c22ce6123dd8dd5f38dc0432"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4885",
                "url": "https://www.debian.org/security/2021/dsa-4885"
            },
            {
                "refsource": "MLIST",
                "name": "[zookeeper-dev] 20210407 [jira] [Created] (ZOOKEEPER-4278) dependency-check:check failing - netty-transport-4.1.60.Final CVE-2021-21409",
                "url": "https://lists.apache.org/thread.html/r70c3a7bfa904f06a1902f4df20ee26e4f09a46b8fd3eb304dc57a2de@%3Cdev.zookeeper.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[zookeeper-issues] 20210407 [jira] [Assigned] (ZOOKEEPER-4278) dependency-check:check failing - netty-transport-4.1.60.Final CVE-2021-21409",
                "url": "https://lists.apache.org/thread.html/ra66e93703e3f4bd31bdfd0b6fb0c32ae96b528259bb1aa2b6d38e401@%3Cissues.zookeeper.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[zookeeper-issues] 20210407 [jira] [Created] (ZOOKEEPER-4278) dependency-check:check failing - netty-transport-4.1.60.Final CVE-2021-21409",
                "url": "https://lists.apache.org/thread.html/r2732aa3884cacfecac4c54cfaa77c279ba815cad44b464a567216f83@%3Cissues.zookeeper.apache.org%3E"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-f256-j965-7f32",
        "discovery": "UNKNOWN"
    }
}