{"cve":"CVE-2013-2100","nvd":{"published":"2014-09-29T22:55:07.223","modified":"2026-06-16T23:52:44.837","status":"Modified","description":"The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and modify binary package lists via a crafted certificate.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://openwall.com/lists/oss-security/2013/05/15/5","http://openwall.com/lists/oss-security/2013/05/16/3","http://www.securityfocus.com/bid/59878","https://bugs.gentoo.org/show_bug.cgi?id=469888","https://exchange.xforce.ibmcloud.com/vulnerabilities/84315"],"products":["gentoo:portage"],"source":"nvd","synced_at":"2026-10-19T20:34:04.196504363+00:00"},"epss":{"cve":"CVE-2013-2100","score":0.0157,"percentile":0.75372,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8823-xphr-qw9v","url":"https://osv.dev/vulnerability/GHSA-8823-xphr-qw9v","summary":"Gentoo Portage does not verify X.509 certificates from SSL servers","modified":"2024-11-22T20:42:33.334895Z","packages":[{"ecosystem":"PyPI","name":"portage","purl":"pkg:pypi/portage","ranges":["<2.1.12.2"],"fixed":["2.1.12.2"]}]}],"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."]}