SB2025032511 - Remote code execution in SmartDNS



SB2025032511 - Remote code execution in SmartDNS

Published: March 25, 2025

Security Bulletin ID SB2025032511
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2023-31470)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing DNS responses within the _dns_encode_domain() function in dns.c. A remote attacker can send a specially crafted DNS response to the server, trigger an out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.