#VU57852 Input validation error in wolfSSL
Published: November 2, 2021
Vulnerability identifier: #VU57852
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
wolfSSL
wolfSSL
Software vendor:
wolfSSL
wolfSSL
Description
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 when a specific q value is used in a maliciously crafted key while generating DSA signature. A remote attacker can pass specially crafted DSA key to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.