GO-2026-6237None▾ SunlitDenial of service via malformed IPv4 packet in github.com/insomniacslk/dhcp
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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In github.com/insomniacslk/dhcp/dhcpv4/nclient4, BroadcastRawUDPConn.ReadFrom does not validate that the IPv4 payload length is sufficient to hold a UDP header before calculating the DHCP payload length. A frame with an IPv4 total-length field specifying fewer than eight payload bytes results in a negative DHCP length, causing a panic in buf.Consume due to a negative slice bound.
github.com/insomniacslk/dhcp < 0.0.0-20260719225207-c76316d4aa82Upgrade to a patched release:
github.com/insomniacslk/dhcp 0.0.0-20260719225207-c76316d4aa82