SB2021093017 - Domain hijacking in c-ares
Published: September 30, 2021
Security Bulletin ID
SB2021093017
Severity
Medium
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-2021-3672)
The vulnerability allows a remote attacker to hijack domains.
The vulnerability exists due to insufficient validation of host names, returned by the DNS server. A remote attacker can pass specially crafted input to the application and perform domain hijacking.
Remediation
Install update from vendor's website.