gentoo-overlay/metadata/glsa/glsa-202105-31.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202105-31">
  <title>Nettle: Denial of service</title>
  <synopsis>A vulnerability in Nettle could lead to a Denial of Service
    condition.
  </synopsis>
  <product type="ebuild">nettle</product>
  <announced>2021-05-26</announced>
  <revised count="1">2021-05-26</revised>
  <bug>780483</bug>
  <access>local, remote</access>
  <affected>
    <package name="dev-libs/nettle" auto="yes" arch="*">
      <unaffected range="ge">3.7.2</unaffected>
      <vulnerable range="lt">3.7.2</vulnerable>
    </package>
  </affected>
  <background>
    <p>Nettle is a cryptographic library that is designed to fit easily in
      almost any context: In cryptographic toolkits for object-oriented
      languages, such as C++, Python, or Pike, in applications like lsh or
      GnuPG, or even in kernel space.
    </p>
  </background>
  <description>
    <p>It was discovered that Nettle incorrectly handled signature
      verification.
    </p>
  </description>
  <impact type="low">
    <p>A remote attacker could send a specially crafted valid-looking input
      signature, possibly resulting in a Denial of Service condition or force
      an invalid signature.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Nettle users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/nettle-3.7.2"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-20305">CVE-2021-20305</uri>
  </references>
  <metadata tag="requester" timestamp="2021-05-25T20:00:54Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2021-05-26T10:12:28Z">whissi</metadata>
</glsa>