CVE-2019-19960 : In wolfSSL before 4.3.0, wc_ecc_mulmod_ex does not properly resist side-channel

In wolfSSL before 4.3.0, wc_ecc_mulmod_ex does not properly resist side-channel attacks.

Published 2019-12-25 00:15:11

Updated 2020-01-02 19:37:49

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2019-19960

Wolfssl » Wolfssl
Versions before (<) 4.3.0
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 29 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

https://github.com/wolfSSL/wolfssl/commit/5ee9f9c7a23f8ed093fe1e42bc540727e96cebb8

Merge pull request #2637 from SparkiDev/ecc_cache_resist · wolfSSL/wolfssl@5ee9f9c · GitHub
Patch;Third Party Advisory
https://github.com/wolfSSL/wolfssl/releases/tag/v4.3.0-stable

Release wolfSSL release version 4.3.0 · wolfSSL/wolfssl · GitHub
Release Notes;Third Party Advisory

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