| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200405-23"> |
| <title>Heimdal: Kerberos 4 buffer overflow in kadmin</title> |
| <synopsis> |
| A possible buffer overflow in the Kerberos 4 component of Heimdal has been |
| discovered. |
| </synopsis> |
| <product type="ebuild">Heimdal</product> |
| <announced>May 27, 2004</announced> |
| <revised>May 27, 2004: 01</revised> |
| <bug>50208</bug> |
| <access>remote </access> |
| <affected> |
| <package name="app-crypt/heimdal" auto="yes" arch="*"> |
| <unaffected range="ge">0.6.2</unaffected> |
| <vulnerable range="lt">0.6.2</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| Heimdal is a free implementation of Kerberos. |
| </p> |
| </background> |
| <description> |
| <p> |
| A buffer overflow was discovered in kadmind, a server for administrative |
| access to the Kerberos database. |
| </p> |
| </description> |
| <impact type="high"> |
| <p> |
| By sending a specially formatted message to kadmind, a remote attacker may |
| be able to crash kadmind causing a denial of service, or execute arbitrary |
| code with the permissions of the kadmind process. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| For a temporary workaround, providing you do not require Kerberos 4 |
| support, you may turn off Kerberos 4 kadmin by running kadmind with the |
| --no-kerberos4 option. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All Heimdal users should upgrade to the latest stable version: |
| </p> |
| <code> |
| # emerge sync |
| |
| # emerge -pv ">=app-crypt/heimdal-0.6.2" |
| # emerge ">=app-crypt/heimdal-0.6.2"</code> |
| </resolution> |
| <references> |
| <uri link="http://www.pdc.kth.se/heimdal/advisory/2004-05-06/">Heimdal 0.6.2 Release Notice</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0434">CAN-2004-0434</uri> |
| </references> |
| <metadata tag="submitter"> |
| jaervosz |
| </metadata> |
| </glsa> |