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CVE details

CVE-2017-2620

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

Score
5.5 medium
Published
2018-07-27
Links
NVD · cve.org

Affected ports (1)

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

VuXML

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>2.8.0</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA
	Emulator support is vulnerable to an out-of-bounds access issue. The
	issue could occur while copying VGA data in cirrus_bitblt_cputovideo.
	A privileged user inside guest could use this flaw to crash the QEMU
	process OR potentially execute arbitrary code on host with privileges
	of the QEMU process.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2017-2620</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2017-2620</url>
    </references>
    <dates>
      <discovery>2018-07-27</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>