52 lines
1.8 KiB
XML
52 lines
1.8 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="202012-19">
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<title>PowerDNS Recursor: Denial of service</title>
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<synopsis>A vulnerability in PowerDNS Recursor could lead to a Denial of
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Service condition.
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</synopsis>
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<product type="ebuild">pdns-recursor</product>
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<announced>2020-12-23</announced>
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<revised count="1">2020-12-23</revised>
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<bug>746923</bug>
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<access>remote</access>
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<affected>
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<package name="net-dns/pdns-recursor" auto="yes" arch="*">
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<unaffected range="ge">4.3.5</unaffected>
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<vulnerable range="lt">4.3.5</vulnerable>
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</package>
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</affected>
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<background>
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<p>PowerDNS Recursor is a high-end, high-performance resolving name server.</p>
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</background>
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<description>
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<p>It was discovered that it was possible to update the DNSSEC validation
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state to a bogus state for a cached record via DNS ANY query.
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</p>
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</description>
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<impact type="low">
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<p>A remote attacker could send specially crafted DNS queries to deny
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DNSSEC validation.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All PowerDNS Recursor users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-dns/pdns-recursor-4.3.5"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-25829">CVE-2020-25829</uri>
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<uri link="https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html">
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PowerDNS Security Advisory 2020-07
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</uri>
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</references>
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<metadata tag="requester" timestamp="2020-12-23T17:00:31Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2020-12-23T19:54:43Z">whissi</metadata>
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</glsa>
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