Bug 1179081 (CVE-2020-28975) - VUL-1: CVE-2020-28975: libsvm: denial of service in svm_predict_values in svm.cpp
Summary: VUL-1: CVE-2020-28975: libsvm: denial of service in svm_predict_values in svm...
Status: RESOLVED INVALID
Alias: CVE-2020-28975
Product: openSUSE Distribution
Classification: openSUSE
Component: Basesystem (show other bugs)
Version: Leap 15.2
Hardware: Other Other
: P5 - None : Minor (vote)
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Assignee: E-mail List
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/272141/
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Reported: 2020-11-23 07:10 UTC by Alexander Bergmann
Modified: 2020-11-23 07:37 UTC (History)
1 user (show)

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Found By: Security Response Team
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Description Alexander Bergmann 2020-11-23 07:10:04 UTC 
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.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-28975
https://github.com/scikit-learn/scikit-learn/issues/18891
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28975
https://github.com/cjlin1/libsvm/blob/9a3a9708926dec87d382c43b203f2ca19c2d56a0/svm.cpp#L2501
Comment 1 Alexander Bergmann 2020-11-23 07:37:24 UTC 
The original bug report was closed as invalid. The reporter changed a private variable inside the class that shouldn't be allowed.

Closing bug as invalid.