A vulnerability has been reported in OpenBSD, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
The vulnerability is caused due to the improper handling of DHCP requests within dhcpd in the "cons_options()" function in options.c. This can be exploited to cause a stack-based buffer overflow by sending a specially crafted DHCP request specifying a maximum message size between DHCP_FIXED_LEN and DHCP_FIXED_LEN + 3.
Successful exploitation may allow the execution of arbitrary code.
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