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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201701-05">
<title>BusyBox: Denial of service</title>
<synopsis>A vulnerability in BusyBox might allow remote attackers to cause a
Denial of Service condition.
</synopsis>
<product type="ebuild">busybox</product>
<announced>2017-01-01</announced>
<revised count="1">2017-01-01</revised>
<bug>590478</bug>
<access>remote</access>
<affected>
<package name="sys-apps/busybox" auto="yes" arch="*">
<unaffected range="ge">1.25.1</unaffected>
<vulnerable range="lt">1.25.1</vulnerable>
</package>
</affected>
<background>
<p>BusyBox is a set of tools for embedded systems and is a replacement for
GNU Coreutils.
</p>
</background>
<description>
<p>The recv_and_process_client_pkt function in networking/ntpd.c in BusyBox
allows remote attackers to cause a Denial of Service (CPU and bandwidth
consumption) via a forged NTP packet, which triggers a communication
loop.
</p>
</description>
<impact type="normal">
<p>A remote attacker might send a specially crafted package to a machine
running BusyBox ntpd, possibly resulting in a Denial of Service
condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All BusyBox users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.25.1"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6301">CVE-2016-6301</uri>
</references>
<metadata tag="requester" timestamp="2017-01-01T12:19:19Z">b-man</metadata>
<metadata tag="submitter" timestamp="2017-01-01T15:33:56Z">b-man</metadata>
</glsa>
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