gentoo-overlay/metadata/glsa/glsa-202003-44.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202003-44">
  <title>Binary diff: Heap-based buffer overflow</title>
  <synopsis>A heap-based buffer overflow in Binary diff might allow remote
    attackers to execute arbitrary code.
  </synopsis>
  <product type="ebuild">bsdiff</product>
  <announced>2020-03-19</announced>
  <revised count="1">2020-03-19</revised>
  <bug>701848</bug>
  <access>local, remote</access>
  <affected>
    <package name="dev-util/bsdiff" auto="yes" arch="*">
      <unaffected range="ge">4.3-r4</unaffected>
      <vulnerable range="lt">4.3-r4</vulnerable>
    </package>
  </affected>
  <background>
    <p>bsdiff and bspatch are tools for building and applying patches to binary
      files.
    </p>
  </background>
  <description>
    <p>It was discovered that the implementation of bspatch did not check for a
      negative value on numbers of bytes read from the diff and extra streams.
    </p>
  </description>
  <impact type="high">
    <p>A remote attacker could entice a user to apply a specially crafted patch
      using bspatch, possibly resulting in execution of arbitrary code with the
      privileges of the process or a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Binary diff users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-util/bsdiff-4.3-r4"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2014-9862">CVE-2014-9862</uri>
  </references>
  <metadata tag="requester" timestamp="2020-03-19T18:34:43Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2020-03-19T18:40:24Z">whissi</metadata>
</glsa>