Description
To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "[^A-Za-z0-9.-]"; "hostname-char-replacement" must be empty (the default); and "ddns-qualifying-suffix" must *NOT* be empty (the default is empty). DDNS updates do not need to be enabled for this issue to manifest. A client that sends certain option content would then cause kea-dhcp4 to exit unexpectedly. This issue affects Kea versions 3.0.1 through 3.0.1 and 3.1.1 through 3.1.2.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
ISC Kea
Default version status: unaffected
3.0.1 to ≤ 3.0.1affected3.1.1 to ≤ 3.1.2affected2.6.0 to ≤ 2.6.4unaffected2.7.0 to ≤ 2.7.9unaffected3.0.0 to ≤ 3.0.0unaffected3.1.0 to ≤ 3.1.0unaffected