ICMPv4 Error Packet Confusion in Suricata

CVE-2016-10728 · MEDIUM Severity

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

An issue was discovered in Suricata before 3.1.2. If an ICMPv4 error packet is received as the first packet on a flow in the to_client direction, it confuses the rule grouping lookup logic. The toclient inspection will then continue with the wrong rule group. This can lead to missed detection.

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