metadata/glsa/glsa-202005-09.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202005-09">
  <title>Python: Denial of service</title>
  <synopsis>A vulnerability in Python could lead to a Denial of Service
    condition.
  </synopsis>
  <product type="ebuild">python</product>
  <announced>2020-05-14</announced>
  <revised count="2">2020-10-18</revised>
  <bug>707822</bug>
  <bug>741502</bug>
  <access>remote</access>
  <affected>
    <package name="dev-lang/python" auto="yes" arch="*">
      <unaffected range="ge" slot="2.7">2.7.18-r2</unaffected>
      <unaffected range="ge" slot="3.6">3.6.10-r2</unaffected>
      <unaffected range="ge" slot="3.7">3.7.7-r2</unaffected>
      <unaffected range="ge" slot="3.8">3.8.2-r2</unaffected>
      <vulnerable range="lt" slot="2.7">2.7.18-r2</vulnerable>
      <vulnerable range="lt" slot="3.6">3.6.10-r2</vulnerable>
      <vulnerable range="lt" slot="3.7">3.7.7-r2</vulnerable>
      <vulnerable range="lt" slot="3.8">3.8.2-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>Python is an interpreted, interactive, object-oriented programming
      language.
    </p>
  </background>
  <description>
    <p>An issue was discovered in urllib.request.AbstractBasicAuthHandler which
      allowed a remote attacker to send malicious data causing extensive
      regular expression backtracking.
    </p>
  </description>
  <impact type="normal">
    <p>An attacker could cause a possible Denial of Service condition.</p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Python 2.7 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-lang/python-2.7.18-r2:2.7"
    </code>
    
    <p>All Python 3.6 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-lang/python-3.6.10-r2:3.6"
    </code>
    
    <p>All Python 3.7 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-lang/python-3.7.7-r2:3.7"
    </code>
    
    <p>All Python 3.8 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-lang/python-3.8.2-r2:3.8"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-8492">CVE-2020-8492</uri>
  </references>
  <metadata tag="requester" timestamp="2020-05-07T23:04:03Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2020-10-18T00:59:06Z">sam_c</metadata>
</glsa>