CVEvulnerability
CVE-2020-28975
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-11-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
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.
Affected configurations
• scikit-learn scikit-learn (>= 0.23.2 < 1.0.1)
References
- http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Nov/44 Mailing List, Third Party Advisory
- https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501 Exploit, Third Party Advisory
- https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85 Patch, Third Party Advisory
- https://github.com/scikit-learn/scikit-learn/issues/18891 Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202301-03 Third Party Advisory
- http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Nov/44 Mailing List, Third Party Advisory
- https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501 Exploit, Third Party Advisory
- https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85 Patch, Third Party Advisory
- https://github.com/scikit-learn/scikit-learn/issues/18891 Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202301-03 Third Party Advisory