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Message-ID: <20131206140153.GA16411@cachalot> Date: Fri, 6 Dec 2013 18:01:53 +0400 From: Vasily Kulikov <segoon@...nwall.com> To: oss-security@...ts.openwall.com Subject: Re: CVE request: Kernel: ping: NULL pointer dereference on write to msg_name Hi, On Fri, Dec 06, 2013 at 19:13 +0530, P J P wrote: > Linux kernel built with the TCP/IP networking support(CONFIG_NET) is > vulnerable to a NULL pointer dereference flaw. It could occur via a > plain read(2) call on a ping socket. Usage of ping sockets is > generally restricted to privileged users. > > A user/program able to read from ping sockets could use this flaw to crash a > system resulting in DoS. > > Upstream fix: > ------------- > -> https://git.kernel.org/linus/cf970c002d270c36202bd5b9c2804d3097a52da0 > > Reference: > ---------- > -> https://bugzilla.redhat.com/show_bug.cgi?id=1039046 The bug was introduced with ping6 sockets implementation in: https://git.kernel.org/linus/6d0bfe22611602f36617bc7aa2ffa1bbb2f54c67 Thanks, -- Vasily Kulikov http://www.openwall.com - bringing security into open computing environments
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