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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201703-03">
<title>PuTTY: Buffer overflow </title>
<synopsis>A buffer overflow in PuTTY might allow remote attackers to execute
arbitrary code or cause a denial of service.
</synopsis>
<product type="ebuild">PuTTY</product>
<announced>2017-03-19</announced>
<revised count="1">2017-03-19</revised>
<bug>610552</bug>
<access>remote</access>
<affected>
<package name="net-misc/putty" auto="yes" arch="*">
<unaffected range="ge">0.68</unaffected>
<vulnerable range="lt">0.68</vulnerable>
</package>
</affected>
<background>
<p>PuTTY is a free implementation of Telnet and SSH for Windows and Unix
platforms, along with an xterm terminal emulator.
</p>
</background>
<description>
<p>A heap-corrupting buffer overflow bug in the ssh_agent_channel_data
function of PuTTY was found.
</p>
</description>
<impact type="normal">
<p>A remote attacker, utilizing the SSH agent forwarding of an SSH server,
could execute arbitrary code with the privileges of the user running the
client or cause a Denial of Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All PuTTY users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=net-misc/putty-0.68"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-6542">CVE-2017-6542</uri>
</references>
<metadata tag="requester" timestamp="2017-03-07T21:53:38Z">BlueKnight</metadata>
<metadata tag="submitter" timestamp="2017-03-19T18:47:02Z">BlueKnight</metadata>
</glsa>