Vulnerability Details CVE-2020-28975
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 38.5%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html
- http://seclists.org/fulldisclosure/2020/Nov/44
- https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501
- https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85
- https://github.com/scikit-learn/scikit-learn/issues/18891
- https://security.gentoo.org/glsa/202301-03
- http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html
- http://seclists.org/fulldisclosure/2020/Nov/44
- https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501
- https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85
- https://github.com/scikit-learn/scikit-learn/issues/18891
- https://security.gentoo.org/glsa/202301-03
Products affected by CVE-2020-28975
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cpe:2.3:a:scikit-learn:scikit-learn:0.23.2
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cpe:2.3:a:scikit-learn:scikit-learn:0.24.0
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cpe:2.3:a:scikit-learn:scikit-learn:0.24.1
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cpe:2.3:a:scikit-learn:scikit-learn:0.24.2
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cpe:2.3:a:scikit-learn:scikit-learn:1.0