| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| <glsa id="201406-23"> |
| <title>DenyHosts: Denial of Service</title> |
| <synopsis>A vulnerability in DenyHosts could allow a remote attacker to |
| create a Denial of Service condition. |
| </synopsis> |
| <product type="ebuild">denyhost</product> |
| <announced>June 25, 2014</announced> |
| <revised>June 25, 2014: 1</revised> |
| <bug>495130</bug> |
| <access>remote</access> |
| <affected> |
| <package name="app-admin/denyhosts" auto="yes" arch="*"> |
| <unaffected range="ge">2.6-r9</unaffected> |
| <vulnerable range="lt">2.6-r9</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p>DenyHosts is a script intended to be run by Linux system administrators |
| to help thwart SSH server attacks. |
| </p> |
| </background> |
| <description> |
| <p>DenyHosts does not properly define the regular expressions used when |
| parsing SSH authentication logs. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p>A remote attacker could possibly cause a Denial of Service condition via |
| a crafted login name. |
| </p> |
| </impact> |
| <workaround> |
| <p>There is no known workaround at this time.</p> |
| </workaround> |
| <resolution> |
| <p>All DenyHost users should upgrade to the latest version:</p> |
| |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=app-admin/denyhosts-2.6-r9" |
| </code> |
| |
| </resolution> |
| <references> |
| <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6890">CVE-2013-6890</uri> |
| </references> |
| <metadata tag="requester" timestamp="Mon, 16 Jun 2014 04:56:45 +0000"> |
| BlueKnight |
| </metadata> |
| <metadata tag="submitter" timestamp="Wed, 25 Jun 2014 20:54:12 +0000">Zlogene</metadata> |
| </glsa> |