#VU63866 Input validation error in cfrpki - CVE-2021-3910

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Main Vulnerability Database Vulnerabilities #VU63866

#VU63866 Input validation error in cfrpki - CVE-2021-3910

Published: May 31, 2022


Vulnerability identifier: #VU63866
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-2021-3910
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
cfrpki
Software vendor:
Cloudflare, WP Engine

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 encountering a repository that returns an invalid ROA (just an encoded NUL () character). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links