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Message-ID: <664d3f4f3a743315903d56a89317c19edada92a2.camel@redhat.com>
Subject: Re: [PATCH net-next v2] icmp: Add icmp_timestamp_ignore_all to
 control ICMP_TIMESTAMP
From: Paolo Abeni <pabeni@redhat.com>
To: ye.xingchen@zte.com.cn, davem@davemloft.net
Cc: edumazet@google.com, kuba@kernel.org, corbet@lwn.net,
 dsahern@kernel.org,  ncardwell@google.com, soheil@google.com,
 haiyangz@microsoft.com,  lixiaoyan@google.com, mfreemon@cloudflare.com,
 david.laight@aculab.com,  netdev@vger.kernel.org,
 linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, 
 fan.yu9@zte.com.cn, he.peilin@zte.com.cn, xu.xin16@zte.com.cn, 
 yang.yang29@zte.com.cn, yang.guang5@zte.com.cn, zhang.yunkai@zte.com.cn
Date: Tue, 21 May 2024 10:57:02 +0200
In-Reply-To: <20240520165335899feIJEvG6iuT4f7FBU6ctk@zte.com.cn>
References: <20240520165335899feIJEvG6iuT4f7FBU6ctk@zte.com.cn>
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On Mon, 2024-05-20 at 16:53 +0800, ye.xingchen@zte.com.cn wrote:
> From: YeXingchen <ye.xingchen@zte.com.cn>
>=20
> The CVE-1999-0524 vulnerability is associated with ICMP
> timestamp messages, which can be exploited to conduct=20
> a denial-of-service (DoS) attack. In the Vulnerability
> Priority Rating (VPR) system, this vulnerability was=20
> rated as a medium risk in May of this year.
> Link:https://www.tenable.com/plugins/nessus/10113
>=20
> To protect embedded systems that cannot run firewalls
> from attacks exploiting the CVE-1999-0524 vulnerability,
> the icmp_timestamp_ignore_all sysctl is offered as=20
> an easy solution, which allows all ICMP timestamp
> messages to be ignored, effectively bypassing the=20
> potential exploitation through the CVE-1999-0524=20
> vulnerability. It enables these resource-constrained
> systems to disregard all ICMP timestamp messages,
> preventing potential DoS attacks, making it an ideal
> lightweight solution for such environments.
>=20
> Signed-off-by: YeXingchen <ye.xingchen@zte.com.cn>
> Reviewed-by: xu xin <xu.xin16@zte.com.cn>
> Reviewed-by: zhang yunkai <zhang.yunkai@zte.com.cn>
> Reviewed-by: Fan Yu <fan.yu9@zte.com.cn>
> CC: he peilin <he.peilin@zte.com.cn>
> Cc: Yang Yang <yang.yang29@zte.com.cn>
> Cc: Yang Guang <yang.guang5@zte.com.cn>

## Form letter - net-next-closed

The merge window for v6.10 has begun and we have already posted our
pull
request. Therefore net-next is closed for new drivers, features, code
refactoring and optimizations. We are currently accepting bug fixes
only.

Please repost when net-next reopens after May 26th.

RFC patches sent for review only are obviously welcome at any time.

See:
https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#develop=
ment-cycle