{"cve":"CVE-2017-20230","nvd":{"published":"2026-04-21T16:16:18.077","modified":"2026-06-17T01:15:27.847","status":"Analyzed","description":"Storable versions before 3.05 for Perl has a stack overflow.\n\nThe retrieve_hook function stored the length of the class name into a signed integer but in read operations treated the length as unsigned. This allowed an attacker to craft data that could trigger the overflow.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-121"],"references":["https://github.com/Perl/perl5/commit/a258c17c6937f79529c8319a829310e09cdbd216.patch","https://github.com/Perl/perl5/issues/15831","https://metacpan.org/release/RURBAN/Storable-3.05/changes","https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242533.html","https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242703.html"],"products":["nwclark:storable"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2017-20230","score":0.00641,"percentile":0.50727,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}