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CVE details

CVE-2018-7858

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.

Score
5.5 medium
Published
2018-03-12
Links
NVD · cve.org

Affected ports (1)

PortPackageVersionStatusMaintainer
emulators/qemu-cheriqemu-cheri0.d20260108unaddressedbrooks@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>qemu-cheri</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA
	Emulator support, allows local guest OS privileged users to cause a
	denial of service (out-of-bounds access and QEMU process crash) by
	leveraging incorrect region calculation when updating VGA display.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2018-7858</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2018-7858</url>
    </references>
    <dates>
      <discovery>2018-03-12</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>