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Malformed ICMP Packets May Cause a Denial of Service (SCTP)

Information

Severity

Severity

High

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:C/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

18 years ago

Modified

Modified

4 years ago

Summary

It is possible to crash the remote host by sending it malformed ICMP packets.

Insight

Insight

Linux Kernels older than version 2.6.13 contains a bug which may allow an attacker to cause a NULL pointer dereference by sending malformed ICMP packets, thus resulting in a kernel panic. This flaw is present only if SCTP support is enabled on the remote host.

Solution

Solution

Ugprade to Linux 2.6.13 or newer, or disable SCTP support.