DEBIAN-CVE-2021-3929
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-3929
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3929.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-3929
- Upstream
- Published
- 2022-08-25T20:15:09Z
- Modified
- 2026-09-15T09:02:33Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A 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.
- References
Affected packages
Debian:12 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=bookworm
Debian:13 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=trixie
Debian:14 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=forky