Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/44670?format=api",
    "vulnerability_id": "VCID-bqpn-m2fh-9kab",
    "summary": "Possible Denial of Service Vulnerability in Rack’s header parsing\nThere is a denial of service vulnerability in the header parsing component of Rack. Carefully crafted input can cause header parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse headers using Rack (virtually all Rails applications) are impacted. Workarounds Setting `Regexp.timeout` in Ruby 3.2 is a possible workaround.",
    "aliases": [
        {
            "alias": "CVE-2023-27539"
        },
        {
            "alias": "GHSA-c6qg-cjj8-47qp"
        },
        {
            "alias": "GMS-2023-769"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/64317?format=api",
            "purl": "pkg:gem/rack@2.2.6.4",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@2.2.6.4"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/64318?format=api",
            "purl": "pkg:gem/rack@3.0.6.1",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.0.6.1"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/57019?format=api",
            "purl": "pkg:gem/rack@2.0.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-1ra1-pgt2-3ubf"
                },
                {
                    "vulnerability": "VCID-bqpn-m2fh-9kab"
                },
                {
                    "vulnerability": "VCID-ebb6-b5tx-5bhf"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@2.0.0"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/64279?format=api",
            "purl": "pkg:gem/rack@3.0.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-52qe-dast-tkhu"
                },
                {
                    "vulnerability": "VCID-bqpn-m2fh-9kab"
                },
                {
                    "vulnerability": "VCID-heu4-cd3d-73ck"
                },
                {
                    "vulnerability": "VCID-yq3g-ykeu-pfbp"
                },
                {
                    "vulnerability": "VCID-zqax-g5xz-wuch"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.0.0"
        }
    ],
    "references": [
        {
            "reference_url": "https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27539",
            "reference_id": "CVE-2023-27539",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27539"
        },
        {
            "reference_url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2023-27539.yml",
            "reference_id": "CVE-2023-27539.YML",
            "reference_type": "",
            "scores": [],
            "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2023-27539.yml"
        },
        {
            "reference_url": "https://github.com/advisories/GHSA-c6qg-cjj8-47qp",
            "reference_id": "GHSA-c6qg-cjj8-47qp",
            "reference_type": "",
            "scores": [],
            "url": "https://github.com/advisories/GHSA-c6qg-cjj8-47qp"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 1035,
            "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."
        },
        {
            "cwe_id": 937,
            "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."
        }
    ],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-bqpn-m2fh-9kab"
}