SB2019102337 - Fedora 30 update for mingw-libidn2
Published: October 23, 2019 Updated: April 25, 2025
Security Bulletin ID
SB2019102337
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2019-18224)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the idn2_to_ascii_4i() function in lib/lookup.c when processing domain names. A remote attacker can trick the victim to visit a specially crafted website, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.