CVE-2020-28975

** DISPUTED ** 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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/scikit-learn/scikit-learn/issues/18891	Exploit Issue Tracking Third Party Advisory
https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501	Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/44	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html	Exploit Third Party Advisory VDB Entry
https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85	Patch Third Party Advisory
https://security.gentoo.org/glsa/202301-03	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:scikit-learn:scikit-learn:*:*:*:*:*:*:*:*

Information

Published : 2020-11-21 13:15

Updated : 2023-01-17 10:24

NVD link : CVE-2020-28975

Mitre link : CVE-2020-28975

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

scikit-learn

scikit-learn

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