Denial of Service Vulnerability in Cisco IOS DHCP Packet Handling

Denial of Service Vulnerability in Cisco IOS DHCP Packet Handling

CVE-2004-1111 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size.

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