Improper Check for Unusual or Exceptional Conditions Affecting isc-projects/kea package, versions [3.0.1,3.0.2)[3.1.0,3.1.3)
Threat Intelligence
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- published31 Oct 2025
- disclosed29 Oct 2025
- creditSiniša Uskoković, Ralf Steuer
Introduced: 29 Oct 2025
NewCVE-2025-11232 (opens in a new tab)How to fix?
Upgrade isc-projects/kea to version 3.0.2, 3.1.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions during the hostname sanitizing when specific configuration parameters are set: hostname-char-set remains at its default value, hostname-char-replacement is empty (default), and ddns-qualifying-suffix is not empty. An attacker can cause the process to exit unexpectedly by sending crafted option content. This is only exploitable if all three configuration parameters are set as described.
Workaround
This vulnerability can be mitigated by setting "hostname-char-replacement" to any non-empty value (e.g., "x").