SB2020041207 - Use of a broken or risky cryptographic algorithm in wolfSSL



SB2020041207 - Use of a broken or risky cryptographic algorithm in wolfSSL

Published: April 12, 2020 Updated: August 8, 2020

Security Bulletin ID SB2020041207
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2020-11713)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

wolfSSL 4.3.0 has mulmod code in wc_ecc_mulmod_ex in ecc.c that does not properly resist timing side-channel attacks.


Remediation

Install update from vendor's website.