| <?xml version="1.0" encoding="utf-8"?> |
| <?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> |
| <?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200512-13"> |
| <title>Dropbear: Privilege escalation</title> |
| <synopsis> |
| A buffer overflow in Dropbear could allow authenticated users to execute |
| arbitrary code as the root user. |
| </synopsis> |
| <product type="ebuild">dropbear</product> |
| <announced>December 23, 2005</announced> |
| <revised>December 23, 2005: 01</revised> |
| <bug>116006</bug> |
| <access>remote</access> |
| <affected> |
| <package name="net-misc/dropbear" auto="yes" arch="*"> |
| <unaffected range="ge">0.47</unaffected> |
| <vulnerable range="lt">0.47</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| Dropbear is an SSH server and client with a small memory |
| footprint. |
| </p> |
| </background> |
| <description> |
| <p> |
| Under certain conditions Dropbear could fail to allocate a |
| sufficient amount of memory, possibly resulting in a buffer overflow. |
| </p> |
| </description> |
| <impact type="high"> |
| <p> |
| 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 |
| default. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All Dropbear users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=net-misc/dropbear-0.47"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4178">CVE-2005-4178</uri> |
| </references> |
| <metadata tag="requester" timestamp="Tue, 20 Dec 2005 11:10:03 +0000"> |
| koon |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 20 Dec 2005 16:40:12 +0000"> |
| DerCorny |
| </metadata> |
| <metadata tag="bugReady" timestamp="Wed, 21 Dec 2005 10:00:54 +0000"> |
| DerCorny |
| </metadata> |
| </glsa> |