<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="202012-18"> <title>PowerDNS: information disclosure</title> <synopsis>An information disclosure vulnerability in PowerDNS allow remote attackers to obtain sensitive information. </synopsis> <product type="ebuild">pdns</product> <announced>2020-12-23</announced> <revised count="1">2020-12-23</revised> <bug>744160</bug> <access>remote</access> <affected> <package name="net-dns/pdns" auto="yes" arch="*"> <unaffected range="ge">4.3.1</unaffected> <vulnerable range="lt">4.3.1</vulnerable> </package> </affected> <background> <p>The PowerDNS nameserver is an authoritative-only nameserver which uses a flexible backend architecture. </p> </background> <description> <p>It was discovered that PowerDNS did not properly handle certain unknown records. </p> </description> <impact type="low"> <p>An authorized attacker with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory. Crafted records cannot be inserted via AXFR. </p> </impact> <workaround> <p>Do not take zone data from untrusted users.</p> </workaround> <resolution> <p>All PowerDNS users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-4.3.1" </code> </resolution> <references> <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-17482">CVE-2020-17482</uri> <uri link="https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html"> PowerDNS Security Advisory 2020-05 </uri> </references> <metadata tag="requester" timestamp="2020-12-23T16:32:50Z">whissi</metadata> <metadata tag="submitter" timestamp="2020-12-23T19:54:22Z">whissi</metadata> </glsa>