{"id":"CVE-2020-28975","details":"svm_predict_values in svm.cpp in Libsvm v324, as used in scikit-learn 0.23.2 and other products, allows attackers to cause a denial of service (segmentation fault) via a crafted model SVM (introduced via pickle, json, or any other model permanence standard) with a large value in the _n_support array. NOTE: the scikit-learn vendor's position is that the behavior can only occur if the library's API is violated by an application that changes a private attribute.","aliases":["GHSA-jxfp-4rvq-9h9m","PYSEC-2020-108"],"modified":"2026-03-15T22:37:55.407348Z","published":"2020-11-21T21:15:10.680Z","related":["openSUSE-SU-2024:11805-1","openSUSE-SU-2025:14729-1"],"references":[{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2020/Nov/44"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202301-03"},{"type":"REPORT","url":"https://github.com/scikit-learn/scikit-learn/issues/18891"},{"type":"FIX","url":"https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html"},{"type":"EVIDENCE","url":"https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/scikit-learn/scikit-learn","events":[{"introduced":"0fb307bf39bbdacd6ed713c00724f8f871d60370"},{"fixed":"0d378913be6d7e485b792ea36e9268be31ed52d0"},{"fixed":"1bf13d567d3cd74854aa8343fd25b61dd768bb85"}],"database_specific":{"versions":[{"introduced":"0.23.2"},{"fixed":"1.0.1"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28975.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}