oss-security - CVE request: Kernel: ping: NULL pointer dereference on write to msg

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Message-ID: <alpine.LFD.2.10.1312061910160.4862@wniryva.cad.erqung.pbz>
Date: Fri, 6 Dec 2013 19:13:32 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
Subject: CVE request: Kernel: ping: NULL pointer dereference on write to
 msg_name

    Hello,

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

Thank you.
--
Prasad J Pandit / Red Hat Security Response Team

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