| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| <glsa id="201207-06"> |
| <title>JRuby: Denial of Service</title> |
| <synopsis>A hash collision vulnerability in JRuby allows remote attackers to |
| cause a Denial of Service condition. |
| </synopsis> |
| <product type="ebuild">jruby</product> |
| <announced>July 09, 2012</announced> |
| <revised>July 09, 2012: 1</revised> |
| <bug>396305</bug> |
| <access>remote</access> |
| <affected> |
| <package name="dev-java/jruby" auto="yes" arch="*"> |
| <unaffected range="ge">1.6.5.1</unaffected> |
| <vulnerable range="lt">1.6.5.1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p>JRuby is a Java-based Ruby interpreter implementation.</p> |
| </background> |
| <description> |
| <p>JRuby does not properly randomize hash functions to protect against hash |
| collision attacks. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p>A remote attacker could send a specially crafted input, possibly |
| resulting in a Denial of Service condition. |
| </p> |
| </impact> |
| <workaround> |
| <p>There is no known workaround at this time.</p> |
| </workaround> |
| <resolution> |
| <p>All JRuby users should upgrade to the latest version:</p> |
| |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=dev-java/jruby-1.6.5.1" |
| </code> |
| </resolution> |
| <references> |
| <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4838">CVE-2011-4838</uri> |
| </references> |
| <metadata timestamp="Mon, 11 Jun 2012 19:25:16 +0000" tag="requester">ackle</metadata> |
| <metadata timestamp="Mon, 09 Jul 2012 22:35:40 +0000" tag="submitter">ackle</metadata> |
| </glsa> |