ISC DHCP contains a flaw that may allow a remote denial of service. The issue is triggered when an error occurs during the handling of client identifiers, which will result in an endless loop. With a malformed packet a remote attacker can cause a loss of availability for the program.
Classification
Location:
Remote / Network Access
Attack Type:
Denial of Service
Impact:
Loss of Availability
Solution:
Upgrade
Exploit:
Exploit Private
Disclosure:
Vendor Verified,
Coordinated Disclosure
Solution
Upgrade to version 4.1-ESV-R6 or 4.2.4-P1 or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
