<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="202004-06"> <title>GnuTLS: DTLS protocol regression</title> <synopsis>A regression in GnuTLS breaks the security guarantees of the DTLS protocol. </synopsis> <product type="ebuild">gnutls</product> <announced>2020-04-02</announced> <revised count="1">2020-04-02</revised> <bug>715602</bug> <access>local, remote</access> <affected> <package name="net-libs/gnutls" auto="yes" arch="*"> <unaffected range="ge">3.6.13</unaffected> <vulnerable range="lt">3.6.13</vulnerable> </package> </affected> <background> <p>GnuTLS is an Open Source implementation of the TLS and SSL protocols.</p> </background> <description> <p>It was discovered that DTLS client did not contribute any randomness to the DTLS negotiation. </p> </description> <impact type="normal"> <p>Please review the referenced advisory for details.</p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All GnuTLS users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.13" </code> </resolution> <references> <uri link="https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31"> GNUTLS-SA-2020-03-31 </uri> </references> <metadata tag="requester" timestamp="2020-04-02T22:03:22Z">whissi</metadata> <metadata tag="submitter" timestamp="2020-04-02T23:01:11Z">whissi</metadata> </glsa>