The print_option function in dhcp-common.c in dhcpcd up to and including 6.9.1, as used in dhcp.c in dhcpcd 5.x in Android prior to 5.1 and other products, misinterprets the return value of the snprintf function, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted message.
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dhcpcd_project dhcpcd |