| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200701-14"> |
| <title>Mod_auth_kerb: Denial of Service</title> |
| <synopsis> |
| Mod_auth_kerb is vulnerable to a buffer overflow possibly allowing a Denial |
| of Service. |
| </synopsis> |
| <product type="ebuild">mod_auth_kerb</product> |
| <announced>January 22, 2007</announced> |
| <revised>December 30, 2007: 02</revised> |
| <bug>155782</bug> |
| <access>remote</access> |
| <affected> |
| <package name="www-apache/mod_auth_kerb" auto="yes" arch="*"> |
| <unaffected range="ge">5.0_rc7-r1</unaffected> |
| <vulnerable range="lt">5.0_rc7-r1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| Mod_auth_kerb is an Apache authentication module using Kerberos. |
| </p> |
| </background> |
| <description> |
| <p> |
| Mod_auth_kerb improperly handles component byte encoding in the |
| der_get_oid() function, allowing for a buffer overflow to occur if |
| there are no components which require more than one byte for encoding. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| An attacker could try to access a Kerberos protected resource on an |
| Apache server with an incorrectly configured service principal and |
| crash the server process. It is important to note that this buffer |
| overflow is not known to allow for the execution of code. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All mod_auth_kerb users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=www-apache/mod_auth_kerb-5.0_rc7-r1"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5989">CVE-2006-5989</uri> |
| </references> |
| <metadata tag="requester" timestamp="Wed, 17 Jan 2007 22:33:24 +0000"> |
| falco |
| </metadata> |
| <metadata tag="bugReady" timestamp="Wed, 17 Jan 2007 22:40:53 +0000"> |
| falco |
| </metadata> |
| <metadata tag="submitter" timestamp="Thu, 18 Jan 2007 01:47:32 +0000"> |
| shellsage |
| </metadata> |
| </glsa> |