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CVE-2021-3929 A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| QEMU | Versions not published |
References
- gitlab.com gitlab.com
- bugzilla.redhat.com bugzilla.redhat.com
- access.redhat.com access.redhat.com
- gitlab.com gitlab.com
- gitlab.com gitlab.com
- FEDORA-2022-f0a2695054 lists.fedoraproject.org
Timeline
- Published
- Last modified
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