Input validation error in wolfSSL - #VU66879
Published: August 31, 2022
Vulnerability identifier: #VU66879
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in DTLS 1.2 implementation. A remote attacker can send a malicious plaintext handshake message at epoch 0 and perform a denial of service (DoS) attack. The vulnerability affects both server and client side.
Affected software
wolfSSL
Remediation
Install updates from vendor's website.
wolfSSL - update to 5.5.0