Bug 1189742 (CVE-2020-36475) - VUL-1: CVE-2020-36475: mbedtls: potential denial of service via calculations performed by mbedtls_mpi_exp_mod
Summary: VUL-1: CVE-2020-36475: mbedtls: potential denial of service via calculations ...
Status: RESOLVED WORKSFORME
Alias: CVE-2020-36475
Product: openSUSE Distribution
Classification: openSUSE
Component: Security (show other bugs)
Version: Leap 15.2
Hardware: Other Other
: P5 - None : Minor (vote)
Target Milestone: ---
Assignee: Martin Pluskal
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/307806/
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Depends on:
Blocks:
 
Reported: 2021-08-24 08:46 UTC by Robert Frohl
Modified: 2021-08-24 08:47 UTC (History)
0 users

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Found By: Security Response Team
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Blocker: ---
Marketing QA Status: ---
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Description Robert Frohl 2021-08-24 08:46:54 UTC 
CVE-2020-36475

An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and
before 2.7.18 LTS). The calculations performed by mbedtls_mpi_exp_mod are not
limited; thus, supplying overly large parameters could lead to denial of service
when generating Diffie-Hellman key pairs.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-36475
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9
https://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.18
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36475
http://www.cvedetails.com/cve/CVE-2020-36475/
Comment 1 Robert Frohl 2021-08-24 08:47:31 UTC 
fixed, closing