CVE-2017-20285

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["YAML"], "packageName": "YAML", "packageURL": "pkg:cpan/YAML", "programFiles": ["lib/YAML.pm", "lib/YAML/Loader.pm", "lib/YAML/Types.pm"], "programRoutines": [{"name": "YAML::Loader::_parse_explicit"}, {"name": "YAML::Type::code::yaml_load"}, {"name": "YAML::Type::regexp::yaml_load"}], "repo": "https://github.com/ingydotnet/yaml-pm", "versions": [{"lessThan": "1.30", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes.\n\nA perl/hash:Class tag blesses a hash into the class it names. The document supplies the object's fields, and Perl calls DESTROY when it goes out of scope.\n\nWhat DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names."}], "id": "CVE-2017-20285", "lastModified": "2026-10-06T17:17:08.657", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2017-20285", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-06T17:02:52.193961Z", "version": "2.0.3"}}]}, "published": "2026-10-05T07:16:29.017", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/ingydotnet/yaml-pm/commit/471314bbdcbd62077eea32755929122aa8bd00a3.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/ingydotnet/yaml-pm/commit/7736f38bd02e4f9f77d5468721e3be3d7b34a8ec.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/ingydotnet/yaml-pm/issues/176"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/TINITA/YAML-1.30/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/10/05/8"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-470"}, {"lang": "en", "value": "CWE-502"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-yaml: perl-yaml: Arbitrary destructor method execution via crafted YAML document", "id": "2545820", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545820"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-502", "details": ["A flaw was found in perl-yaml. An attacker can trigger unintended actions, such as arbitrary file deletion, by supplying a specially crafted YAML document. The parser permits untrusted documents to instantiate arbitrary object classes, causing Perl to automatically execute their destructor methods when the objects are cleaned up."], "name": "CVE-2017-20285", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "perl-YAML", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "perl-YAML", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "perl-YAML", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "perl-YAML:1.24/perl-YAML", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "perl-YAML", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-05T06:49:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-20285\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-20285\nhttps://github.com/ingydotnet/yaml-pm/commit/471314bbdcbd62077eea32755929122aa8bd00a3.patch\nhttps://github.com/ingydotnet/yaml-pm/commit/7736f38bd02e4f9f77d5468721e3be3d7b34a8ec.patch\nhttps://github.com/ingydotnet/yaml-pm/issues/176\nhttps://metacpan.org/release/TINITA/YAML-1.30/changes"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.30)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "yaml", "vendor": "ingydotnet"}], "created": "2026-10-05T08:30:04.718529+00:00", "updated": "2026-10-07T07:00:14.495100+00:00", "vendors": ["ingydotnet", "ingydotnet$PRODUCT$yaml"]}