SB2024030739 - Denial of service in Unbound



SB2024030739 - Denial of service in Unbound

Published: March 7, 2024

Security Bulletin ID SB2024030739
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Infinite loop (CVE-ID: CVE-2024-1931)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in EDE support when trimming EDE text on
positive replies. A remote attacker can consume all available system resources and cause denial of service conditions.

Successful exploitation of the vulnerability requires enabled support for EDE (not a default option).


Remediation

Install update from vendor's website.