#VU45989 Infinite loop in wolfSSL - CVE-2020-12457

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Main Vulnerability Database Vulnerabilities #VU45989

#VU45989 Infinite loop in wolfSSL - CVE-2020-12457

Published: August 24, 2020


Vulnerability identifier: #VU45989
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2020-12457
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
wolfSSL
Software vendor:
wolfSSL

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The 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.


Remediation

Install updates from vendor's website.

External links