SB2020033015 - Input validation error in libidn2 (Alpine package)
Published: March 30, 2020
Security Bulletin ID
SB2020033015
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2019-12290)
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 update from vendor's website.