CVE-2021-3929

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2021-3929
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-25 20:15:00 UTC
Updated2023-11-07 03:38:00 UTC
DescriptionA DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Application Qemu Qemu All All All All
Application Qemu Qemu 7.0.0 - All All

References

ReferenceSourceLinkTags
2020298 – (CVE-2021-3929) CVE-2021-3929 QEMU: nvme: DMA reentrancy issue leads to use-after-free MISC bugzilla.redhat.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
nvme: DMA reentrancy issue leads to use-after-free (CVE-2021-3929) (#782) · Issues · QEMU / QEMU · GitLab MISC gitlab.com
hw/nvme: fix CVE-2021-3929 (736b0164) · Commits · QEMU / QEMU · GitLab MISC gitlab.com
Fix DMA MMIO reentrancy issues (#556) · Issues · QEMU / QEMU · GitLab MISC gitlab.com
[SECURITY] Fedora 36 Update: qemu-6.2.0-15.fc36 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 36 Update: qemu-6.2.0-15.fc36 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 182950 Debian Security Update for qemu (CVE-2021-3929)
  • 198837 Ubuntu Security Notification for QEMU Vulnerabilities (USN-5489-1)
  • 283141 Fedora Security Update for qemu (FEDORA-2022-f0a2695054)
  • 710604 Gentoo Linux QEMU Multiple Vulnerabilities (GLSA 202208-27)
  • 753802 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2023:0761-1)
  • 753824 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2023:0840-1)
  • 754898 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2023:3721-1)
  • 754937 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2023:3800-1)
  • 903787 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu-kvm (10725)
  • 903830 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu (10721)
  • 905240 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu (10721-1)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report