Vulnerability identifier: #VU45989
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
vulnerability exists due to improper change_cipher_spec (CCS) message
processing logic for TLS 1.3. A remote attacker can send
ChangeCipherSpec messages in a crafted way involving more than one in a
row and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versions
wolfSSL: 4.0 - 4.4.0
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.