gentoo-overlay/metadata/glsa/glsa-202105-03.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202105-03">
  <title>GPT fdisk: Integer underflow</title>
  <synopsis>An integer underflow in sgdisk from GPT fdisk package might allow
    local attacker(s) to escalate privileges.
  </synopsis>
  <product type="ebuild">gptfdisk</product>
  <announced>2021-05-26</announced>
  <revised count="1">2021-05-26</revised>
  <bug>768762</bug>
  <access>local</access>
  <affected>
    <package name="sys-apps/gptfdisk" auto="yes" arch="*">
      <unaffected range="ge">1.0.6</unaffected>
      <vulnerable range="lt">1.0.6</vulnerable>
    </package>
  </affected>
  <background>
    <p>GPT fdisk (consisting of the gdisk, cgdisk, sgdisk, and fixparts
      programs) is a set of text-mode partitioning tools for Linux, FreeBSD,
      Mac OS X, and Windows.
    </p>
  </background>
  <description>
    <p>It was discovered that ReadLogicalParts() function in basicmbr.cc was
      missing a bounds check.
    </p>
  </description>
  <impact type="normal">
    <p>A local attacker could entice a user to insert a malicious formatted
      block device (USB stick or SD card for example), that, when processed
      with sgdisk, possibly resulting in local escalation of privileges or a
      Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All GPT fdisk users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=sys-apps/gptfdisk-1.0.6"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-0308">CVE-2021-0308</uri>
  </references>
  <metadata tag="requester" timestamp="2021-05-25T22:34:12Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2021-05-26T07:45:07Z">whissi</metadata>
</glsa>