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CVE details

CVE-2021-3409

The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.

Score
5.7 medium
Published
2021-03-23
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>The patch for CVE-2020-17380/CVE-2020-25085 was found to be
	ineffective, thus making QEMU vulnerable to the out-of-bounds
	read/write access issues previously found in the SDHCI controller
	emulation code. This flaw allows a malicious privileged guest to crash
	the QEMU process on the host, resulting in a denial of service or
	potential code execution. QEMU up to (including) 5.2.0 is affected by
	this.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2021-3409</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2021-3409</url>
    </references>
    <dates>
      <discovery>2021-03-23</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>