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A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead 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 execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.0.
| Reporter | Title | Published | Views | Family All 160 |
|---|---|---|---|---|
 | CVE-2023-2680 | 13 Sep 202317:15 | – | attackerkb |
 | Alibaba Cloud Linux 3 : 0021: virt:rhel and virt-devel:rhel (ALINUX3-SA-2024:0021) | 14 May 202500:00 | – | nessus |
| AlmaLinux 9 : qemu-kvm (ALSA-2022:7967) | 19 Nov 202200:00 | – | nessus |
| Azure Linux 3.0 Security Update: qemu / qemu-kvm (CVE-2021-3750) | 10 Feb 202500:00 | – | nessus |
| Azure Linux 3.0 Security Update: qemu (CVE-2021-3929) | 10 Feb 202500:00 | – | nessus |
| CentOS 9 : qemu-kvm-8.0.0-8.el9 | 29 Feb 202400:00 | – | nessus |
| EulerOS Virtualization 2.10.0 : qemu (EulerOS-SA-2022-2100) | 15 Jul 202200:00 | – | nessus |
| EulerOS Virtualization 2.10.1 : qemu (EulerOS-SA-2022-2120) | 14 Jul 202200:00 | – | nessus |
| EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2022-2194) | 29 Jul 202200:00 | – | nessus |
| EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2022-2213) | 29 Jul 202200:00 | – | nessus |
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11 Sep 2024 07:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.6
CVSS 3.18.2
EPSS0.0003