#VU103643 Reliance on Reverse DNS Resolution for a Security-Critical Action in Lightbend - CVE-2023-31442

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Main Vulnerability Database Vulnerabilities #VU103643

#VU103643 Reliance on Reverse DNS Resolution for a Security-Critical Action in Lightbend - CVE-2023-31442

Published: February 5, 2025


Vulnerability identifier: #VU103643
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-31442
CWE-ID: CWE-350
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Lightbend
Software vendor:
Akka Project

Description

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 updates from vendor's website.

External links