<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200409-19"> <title>Heimdal: ftpd root escalation</title> <synopsis> Several bugs exist in the Heimdal ftp daemon which could allow a remote attacker to gain root privileges. </synopsis> <product type="ebuild">heimdal</product> <announced>2004-09-16</announced> <revised count="01">2004-09-16</revised> <bug>61412</bug> <access>remote</access> <affected> <package name="app-crypt/heimdal" auto="yes" arch="*"> <unaffected range="ge">0.6.3</unaffected> <vulnerable range="lt">0.6.3</vulnerable> </package> </affected> <background> <p> Heimdal is an implementation of Kerberos 5. </p> </background> <description> <p> Przemyslaw Frasunek discovered several flaws in lukemftpd, which also apply to Heimdal ftpd's out-of-band signal handling code. </p> <p> Additionally, a potential vulnerability that could lead to Denial of Service by the Key Distribution Center (KDC) has been fixed in this version. </p> </description> <impact type="high"> <p> A remote attacker could be able to run arbitrary code with escalated privileges, which can result in a total compromise of the server. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All Heimdal users should upgrade to the latest version: </p> <code> # emerge sync # emerge -pv ">=app-crypt/heimdal-0.6.3" # emerge ">=app-crypt/heimdal-0.6.3"</code> </resolution> <references> <uri link="https://www.pdc.kth.se/heimdal/advisory/2004-09-13/">Heimdal advisory</uri> <uri link="http://www.frasunek.com/lukemftpd.txt">Advisory by Przemyslaw Frasunek</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0794">CAN-2004-0794</uri> </references> <metadata tag="submitter" timestamp="2004-09-13T14:06:46Z"> vorlon078 </metadata> <metadata tag="bugReady" timestamp="2004-09-16T04:33:06Z"> jaervosz </metadata> </glsa>