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CVE details

CVE-2020-16092

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

Score
3.8 low
Published
2020-08-11
Links
NVD · cve.org

Affected ports (2)

PortPackageVersionStatusMaintainer
emulators/qemu-cheriqemu-cheri0.d20260108unaddressedbrooks@FreeBSD.org
emulators/qemu-user-staticqemu-user-static3.1.0_16unaddressedemulation@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>
      <package>
	<name>qemu-user-static</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>In QEMU through 5.0.0, an assertion failure can occur in the network
	packet processing. This issue affects the e1000e and vmxnet3 network
	devices. A malicious guest user/process could use this flaw to abort
	the QEMU process on the host, resulting in a denial of service
	condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2020-16092</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2020-16092</url>
    </references>
    <dates>
      <discovery>2020-08-11</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>