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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201309-20">
<title>Dropbear: Multiple vulnerabilities</title>
<synopsis>Multiple vulnerabilities have been found in Dropbear, the worst of
which could lead to arbitrary code execution.
<product type="ebuild">dropbear</product>
<announced>September 26, 2013</announced>
<revised>September 26, 2013: 1</revised>
<package name="net-misc/dropbear" auto="yes" arch="*">
<unaffected range="ge">2012.55</unaffected>
<vulnerable range="lt">2012.55</vulnerable>
<p>Dropbear is an SSH server and client designed with a small memory
<p>Multiple vulnerabilities have been discovered in Dropbear. Please review
the CVE identifier and Gentoo bug referenced below for details.
<impact type="normal">
<p>A remote attacker could send a specially crafted request to trigger a
use-after-free condition, possibly resulting in arbitrary code execution
or a Denial of Service condition. Additionally, the bundled version of
libtommath has an error in its prime number generation, which could
result in the generation of weak keys.
<p>There is no known workaround at this time.</p>
<p>All Dropbear users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=net-misc/dropbear-2012.55"
<uri link="">CVE-2012-0920</uri>
<uri link="">libtommath
Gentoo bug
<metadata tag="requester" timestamp="Sat, 03 Mar 2012 20:26:25 +0000">
<metadata tag="submitter" timestamp="Thu, 26 Sep 2013 23:47:21 +0000">