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Bug 478278 (CVE-2013-4162) - Kernel : net: panic while pushing pending data out of a IPv6 socket with UDP_CORK enabled (CVE-2013-4162)
Summary: Kernel : net: panic while pushing pending data out of a IPv6 socket with UDP_...
Status: RESOLVED FIXED
Alias: CVE-2013-4162
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: Gentoo Kernel Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-07-26 19:37 UTC by Agostino Sarubbo
Modified: 2022-03-25 15:29 UTC (History)
1 user (show)

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Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2013-07-26 19:37:41 UTC 
From ${URL} :

Linux kernel built with IPv6 networking is vulnerable to a crash while sending
data as a single datagram over IPv6 socket when UDP_CORK option set. UDP_CORK
enables accumulating data and sending it as a single datagram.

An unprivileged user/program could use this flaw to crash the kernel, resulting in local DoS.

Upstream fix:
=============
 -> https://git.kernel.org/linus/8822b64a0fa64a5dd1dfcf837c5b0be83f8c05d1
Comment 1 GLSAMaker/CVETool Bot gentoo-dev 2013-08-30 01:12:42 UTC 
CVE-2013-4162 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4162):
  The udp_v6_push_pending_frames function in net/ipv6/udp.c in the IPv6
  implementation in the Linux kernel through 3.10.3 makes an incorrect
  function call for pending data, which allows local users to cause a denial
  of service (BUG and system crash) via a crafted application that uses the
  UDP_CORK option in a setsockopt system call.
Comment 2 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-03-25 15:29:22 UTC 
Fix in 3.10.4 onward