glsa-202003-27.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202003-27">
  <title>libssh: Arbitrary command execution</title>
  <synopsis>A vulnerability in libssh could allow a remote attacker to execute
    arbitrary commands.
  </synopsis>
  <product type="ebuild">libssh</product>
  <announced>2020-03-15</announced>
  <revised count="1">2020-03-15</revised>
  <bug>701598</bug>
  <access>remote</access>
  <affected>
    <package name="net-libs/libssh" auto="yes" arch="*">
      <unaffected range="ge">0.9.3</unaffected>
      <vulnerable range="lt">0.9.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>libssh is a multiplatform C library implementing the SSHv2 protocol on
      client and server side.
    </p>
  </background>
  <description>
    <p>It was discovered that libssh incorrectly handled certain scp commands.</p>
  </description>
  <impact type="normal">
    <p>A remote attacker could trick a victim into using a specially crafted
      scp command, possibly resulting in the execution of arbitrary commands on
      the server.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All libssh users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-libs/libssh-0.9.3"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-14889">CVE-2019-14889</uri>
  </references>
  <metadata tag="requester" timestamp="2020-03-15T16:06:34Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2020-03-15T16:16:36Z">whissi</metadata>
</glsa>