From: Ido Schimmel <idosch@nvidia.com>
To: jch@thehaxbys.co.uk
Cc: dsahern@kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 1/1] net/ipv4: discard icmp timestamp requests
Date: Thu, 23 Jul 2026 12:08:58 +0300 [thread overview]
Message-ID: <20260723090858.GA3224213@shredder> (raw)
In-Reply-To: <20260722102441.8762-2-jch@thehaxbys.co.uk>
On Wed, Jul 22, 2026 at 11:24:41AM +0100, jch@thehaxbys.co.uk wrote:
> An icmp timestamp request is classed a a minor security vulnerability
> (CVE-1999-0524) due to an information leak. As pretty much everything
> uses NTP these days, it's not as though this is an actual problem but
> scanners flag this so for everyone's sake, let's just discard timestamp
> requests.
The idea was discussed in the past and was rejected:
https://lore.kernel.org/netdev/1557711193-7284-1-git-send-email-chenweilong@huawei.com/
https://lore.kernel.org/netdev/1557754137-100816-1-git-send-email-chenweilong@huawei.com/
https://lore.kernel.org/netdev/20240520165335899feIJEvG6iuT4f7FBU6ctk@zte.com.cn/
I don't see a reason to revisit this.
next prev parent reply other threads:[~2026-07-23 9:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-22 10:24 [PATCH 0/1] net/ipv4: discard icmp timestamp requests jch
2026-07-22 10:24 ` [PATCH 1/1] " jch
2026-07-23 9:08 ` Ido Schimmel [this message]
2026-07-23 16:37 ` John Haxby
2026-07-26 8:00 ` Ido Schimmel
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