Fixed
Created: Oct 7, 2022
Updated: Dec 4, 2022
Resolved Date: Nov 5, 2022
Found In Version: 10.21.20.1
Fix Version: 10.21.20.15
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace
In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.
CREATE(Triage):(User=admin) CVE-2022-2928 (https://nvd.nist.gov/vuln/detail/CVE-2022-2928)
