This security bulletin contains one medium risk vulnerability.
CWE-254 - Security Features
Exploit availability: NoDescription
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to improper validation of OCSP checks, when processing responses for a certificate with no relation to the chain in question and that response contains the NoCheck extension which effectively disables ALL verification of that one cert. A remote attacker can bypass implemented OCSP checks and gain unauthorized access to the system that relies on OCSP verification.
Install updates from vendor's website.Vulnerable software versions
wolfSSL: 4.0 - 4.8.0External links
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.