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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200512-13">
<title>Dropbear: Privilege escalation</title>
A buffer overflow in Dropbear could allow authenticated users to execute
arbitrary code as the root user.
<product type="ebuild">dropbear</product>
<announced>December 23, 2005</announced>
<revised>December 23, 2005: 01</revised>
<package name="net-misc/dropbear" auto="yes" arch="*">
<unaffected range="ge">0.47</unaffected>
<vulnerable range="lt">0.47</vulnerable>
Dropbear is an SSH server and client with a small memory
Under certain conditions Dropbear could fail to allocate a
sufficient amount of memory, possibly resulting in a buffer overflow.
<impact type="high">
By sending specially crafted data to the server, authenticated
users could exploit this vulnerability to execute arbitrary code with
the permissions of the SSH server user, which is the root user by
There is no known workaround at this time.
All Dropbear users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/dropbear-0.47&quot;</code>
<uri link="">CVE-2005-4178</uri>
<metadata tag="requester" timestamp="Tue, 20 Dec 2005 11:10:03 +0000">
<metadata tag="submitter" timestamp="Tue, 20 Dec 2005 16:40:12 +0000">
<metadata tag="bugReady" timestamp="Wed, 21 Dec 2005 10:00:54 +0000">