Date: Thu, 10 Dec 2020 09:53:02 -0500 From: Mark Johnston <markj@freebsd.org> To: "Wall, Stephen" <stephen.wall@redcom.com> Cc: FreeBSD Security Advisories <security-advisories@freebsd.org>, "freebsd-security@freebsd.org" <freebsd-security@freebsd.org> Subject: Re: FreeBSD Security Advisory FreeBSD-SA-20:31.icmp6 Message-ID: <X9I2TrDEO2401ciQ@raichu> In-Reply-To: <DM6PR09MB4807C384E146DCE0C3617FC2EECC0@DM6PR09MB4807.namprd09.prod.outlook.com> References: <20201201204619.F3A3B19D2F@freefall.freebsd.org> <DM6PR09MB4807C384E146DCE0C3617FC2EECC0@DM6PR09MB4807.namprd09.prod.outlook.com>
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On Wed, Dec 09, 2020 at 03:45:13PM +0000, Wall, Stephen wrote: > This advisory states "Systems with IPv6 disabled are not affected." What constitutes disabling IPv6 in this context? Would it require disabling it when building the kernel, or is `ipv6_enable="NO"` in `rc.conf` sufficient? The latter should be sufficient. The kernel will drop IPv6 packets received on an interface with the IFDISABLED flag set, and they won't reach the affected code.home | help
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