#VU22428 Input validation error in Libidn2 - CVE-2019-12290

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Main Vulnerability Database Vulnerabilities #VU22428

#VU22428 Input validation error in Libidn2 - CVE-2019-12290

Published: October 30, 2019


Vulnerability identifier: #VU22428
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-12290
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Libidn2
Software vendor:
GNU

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to libidn2 fails to perform roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. A remote attacker can use a specially crafted domain name to impersonate a trusted website.


Remediation

Install updates from vendor's website.

External links