CVE-2021-3929
Fixed in a distro release EPSS <1%
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.
Products: qemu, fedoraproject fedora
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | qemu | 1:7.0+dfsg-1 |
| Debian 13 | qemu | 1:7.0+dfsg-1 |
| Debian 14 | qemu | 1:7.0+dfsg-1 |
| SUSE Enterprise Storage 7.1 | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | qemu | 3.1.1.1-150100.80.51.5 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | qemu | 4.2.1-150200.79.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise Micro 5.1 | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise Micro 5.2 | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise Real Time 15 SP3 | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise Server 12 SP2-BCL | qemu | 2.6.2-41.76.1 |
| SUSE Linux Enterprise Server 12 SP5 | qemu | 3.1.1.1-66.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | qemu | 3.1.1.1-150100.80.51.5 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | qemu | 4.2.1-150200.79.1 |
| SUSE Linux Enterprise Server 15 SP3-LTSS | qemu | 5.2.0-150300.121.2 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | qemu | 3.1.1.1-66.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | qemu | 3.1.1.1-150100.80.51.5 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | qemu | 4.2.1-150200.79.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | qemu | 5.2.0-150300.121.2 |
| SUSE Manager Proxy 4.2 | qemu | 5.2.0-150300.121.2 |
| SUSE Manager Server 4.2 | qemu | 5.2.0-150300.121.2 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.40 |
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.23 |
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.2 |
| openSUSE Leap 15.4 | qemu | 4.2.1-150200.79.1 |
| openSUSE Tumbleweed | qemu | 6.2.0-44.1 |