Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2022-39173

In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.019
EPSS Ranking 82.0%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2022-39173


Contact Us

Shodan ® - All rights reserved