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Date:      Wed, 25 Feb 2015 18:21:58 +0100
From:      Remko Lodder <remko@FreeBSD.org>
To:        Karl Pielorz <kpielorz_lst@tdx.co.uk>
Cc:        freebsd-security@freebsd.org
Subject:   Re: FreeBSD Security Advisory FreeBSD-SA-15:04.igmp (fwd) - ipfw fix?
Message-ID:  <1BE461E0-D2AC-4222-8D41-B7F97E83FD74@FreeBSD.org>
In-Reply-To: <ABE6D1EBAF2F5AEB25D65407@[10.12.30.106]>
References:  <ABE6D1EBAF2F5AEB25D65407@[10.12.30.106]>

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> On 25 Feb 2015, at 12:24, Karl Pielorz <kpielorz_lst@tdx.co.uk> wrote:
>=20
>=20
> Hi,
>=20
> Presumably if you don't need IGMP, ipfw can be used to mitigate this =
on hosts until they're patched / rebooted, i.e.
>=20
> ipfw add x deny igmp from any to any
>=20
> ?


This suggests that you can filter the traffic:

Block incoming IGMP packets by protecting your host/networks with a =
firewall.
 (Quote from the SA).

Br,
Remko

>=20
> Thanks,
>=20
> -Karl
>=20
> ---------- Forwarded Message ----------
> Date: 25 February 2015 06:29 +0000
> From: FreeBSD Security Advisories <security-advisories@freebsd.org>
> To: FreeBSD Security Advisories <security-advisories@freebsd.org>
> Subject: FreeBSD Security Advisory FreeBSD-SA-15:04.igmp
>=20
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>=20
> =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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> =3D=3D FreeBSD-SA-15:04.igmp                                       =
Security
> Advisory                                                           The
> FreeBSD Project
>=20
> Topic:          Integer overflow in IGMP protocol
>=20
> _______________________________________________
> freebsd-security@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-security
> To unsubscribe, send any mail to =
"freebsd-security-unsubscribe@freebsd.org"

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\ /   Remko Lodder                       | remko@EFnet
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