Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1qeGZwLTRydnEtOWg5bc4AAmrx

scikit-learn Denial of Service

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.

Permalink: https://github.com/advisories/GHSA-jxfp-4rvq-9h9m
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1qeGZwLTRydnEtOWg5bc4AAmrx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: 8 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-jxfp-4rvq-9h9m, CVE-2020-28975
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-28975
• https://github.com/scikit-learn/scikit-learn/issues/18891
• https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501
• http://packetstormsecurity.com/files/160281/SciKit-Learn-0.23.2-Denial-Of-Service.html
• http://seclists.org/fulldisclosure/2020/Nov/44
• https://github.com/scikit-learn/scikit-learn/commit/1bf13d567d3cd74854aa8343fd25b61dd768bb85
• https://security.gentoo.org/glsa/202301-03
• https://github.com/advisories/GHSA-jxfp-4rvq-9h9m

Repository: https://github.com/scikit-learn/scikit-learn
Blast Radius: 38.7

Affected Packages