mailing list archives
Re: Linux kernel scm_send local DoS
From: even multiplexed <Shadow333 () gmx at>
Date: Wed, 15 Dec 2004 13:52:22 +0100
Paul Starzetz wrote:
well, i was also examining the igmp exploit you posted earlier, that one
was relatively easy to disable, by setting the following sysctl vars:
On Wed, 15 Dec 2004, even multiplexed wrote:
attention.i just wanted to ask if anyone has a tip for me how to
quickfix this bug, without actually rebuilding a patched version of the
I don't think this is practicable, since the bugs reside in deep kernel
functions. You can not fix it just by disabling a particular syscall. You
have patch a running kernel binary, maybe someone comes up with this kind
net.ipv4.igmp_max_msf = 0
net.ipv4.igmp_max_memberships = 0
net.ipv4.icmp_ignore_bogus_error_responses = 1
since i dont really need igmp support on that server=)
its just that scm_send thing, that i didnt find any config option for...
so i guess that means either waiting till someone of the kernel
maintainers release a patch, or get one of my friends, that is better on
programming tasks, to fix that one...
all at all makes for quite a risky day for a shell provider...