{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2017-20240",
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "state": "PUBLISHED",
        "assignerShortName": "CPANSec",
        "dateReserved": "2026-05-26T18:23:21.387Z",
        "datePublished": "2026-06-12T13:19:15.900Z",
        "dateUpdated": "2026-06-12T16:59:33.477Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://cpan.org/modules",
                    "defaultStatus": "unaffected",
                    "packageName": "Crypt-PBKDF2",
                    "product": "Crypt::PBKDF2",
                    "programRoutines": [
                        {
                            "name": "Crypt::PBKDF2::validate"
                        }
                    ],
                    "repo": "https://github.com/arodland/Crypt-PBKDF2",
                    "vendor": "ARODLAND",
                    "versions": [
                        {
                            "lessThan": "0.261630",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-208",
                            "description": "CWE-208 Observable Timing Discrepancy",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
                "shortName": "CPANSec",
                "dateUpdated": "2026-06-12T13:19:15.900Z"
            },
            "references": [
                {
                    "tags": [
                        "issue-tracking"
                    ],
                    "url": "https://github.com/arodland/Crypt-PBKDF2/pull/6"
                },
                {
                    "url": "https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.161520/source/lib/Crypt/PBKDF2.pm#L123-148"
                },
                {
                    "tags": [
                        "release-notes"
                    ],
                    "url": "https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to version 0.261630 or later."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "timeline": [
                {
                    "lang": "en",
                    "time": "2017-12-11T00:00:00.000Z",
                    "value": "Issue reported as pull request"
                },
                {
                    "lang": "en",
                    "time": "2026-06-11T00:00:00.000Z",
                    "value": "Version 0.261630 released with a fix"
                }
            ],
            "title": "Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Apply the patch from the referenced pull request."
                }
            ],
            "x_generator": {
                "engine": "cpansec-cna-tool 0.1"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.9,
                            "attackVector": "NETWORK",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-12T16:06:29.012440Z",
                                "id": "CVE-2017-20240",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-12T16:06:56.547Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/06/12/3"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2026-06-12T16:59:33.477Z"
                }
            }
        ]
    }
}