Vulnerability identifier: #VU67767
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
wolfSSL
Universal components / Libraries /
Libraries used by multiple products
Vendor: wolfSSL
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing TLS 1.3 protocol requests with session tickets. A remote attacker can send a specially crafted ClientHello packet to the affected server, trigger a buffer overflow and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
wolfSSL: 5.0.0 - 5.5.0
External links
http://github.com/wolfSSL/wolfssl/releases/tag/v5.5.1-stable
http://seclists.org/fulldisclosure/2022/Oct/24
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.