Security issue with TCP SYN packets on Linux - Linux

bert.n · #1 03-11-2005

Hi all,

A security scanner has been done on a linux server and have found that

The remote host does not discard RCP SYN packets which have the FIN flag set.

It tells that I need to request a patch which I haven't found yet.

I have Red Hat Linux release 7.0 (Guinness)
Kernel 2.2.16-22 on an i686

Anyon can help me looking for this patch or any other solution to this problem.

thanks

thmnetwork · #2 03-20-2005

is any particular reason you can't just upgrade to a 2.6 kernel?

bert.n · #3 03-22-2005

Hi thmnetwork,

will upgrade hopefully by end of this year, but the issue is that a security audit has been done and need to 'fill out' all the possible holes..

I guess I'll use the ipchains firewall for that.

thanks for your reply.

Bert.n

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