SB2025020525 - Reliance on Reverse DNS Resolution for a Security-Critical Action in Akka Lightbend
Published: February 5, 2025
Security Bulletin ID
SB2025020525
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Reliance on Reverse DNS Resolution for a Security-Critical Action (CVE-ID: CVE-2023-31442)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to async-dns resolver (used by Discovery in DNS mode and transitively by Cluster Bootstrap) uses predictable DNS transaction IDs when resolving DNS records. A remote attacker can exploit the vulnerability to perform a denial of service attack.
Remediation
Install update from vendor's website.