Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/97420?format=api",
    "vulnerability_id": "VCID-4wd1-kxpx-9ugm",
    "summary": "An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location.",
    "aliases": [
        {
            "alias": "CVE-2020-16127"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/584643?format=api",
            "purl": "pkg:deb/debian/accountsservice@0?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/accountsservice@0%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/584644?format=api",
            "purl": "pkg:deb/debian/accountsservice@0.6.55-3?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-y4tn-cs9p-v7eh"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/accountsservice@0.6.55-3%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/584645?format=api",
            "purl": "pkg:deb/debian/accountsservice@22.08.8-6?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/accountsservice@22.08.8-6%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/584646?format=api",
            "purl": "pkg:deb/debian/accountsservice@23.13.9-7?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/accountsservice@23.13.9-7%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/584647?format=api",
            "purl": "pkg:deb/debian/accountsservice@23.13.9-8?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/accountsservice@23.13.9-8%3Fdistro=trixie"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-16127",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38474",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.3861",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38634",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38496",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38548",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38556",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38567",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38529",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38503",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38551",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38449",
                    "published_at": "2026-04-21T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.3829",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38266",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00172",
                    "scoring_system": "epss",
                    "scoring_elements": "0.38174",
                    "published_at": "2026-04-29T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-16127"
        },
        {
            "reference_url": "https://usn.ubuntu.com/4616-1/",
            "reference_id": "USN-4616-1",
            "reference_type": "",
            "scores": [],
            "url": "https://usn.ubuntu.com/4616-1/"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-4wd1-kxpx-9ugm"
}