vulnerability
Ubuntu: USN-5307-1 (CVE-2021-3748): QEMU vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Mar 23, 2022 | Mar 22, 2023 | Mar 22, 2023 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Mar 23, 2022
Added
Mar 22, 2023
Modified
Mar 22, 2023
Description
A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.
Solution(s)
ubuntu-upgrade-qemu-systemubuntu-upgrade-qemu-system-armubuntu-upgrade-qemu-system-mipsubuntu-upgrade-qemu-system-miscubuntu-upgrade-qemu-system-ppcubuntu-upgrade-qemu-system-s390xubuntu-upgrade-qemu-system-sparcubuntu-upgrade-qemu-system-x86ubuntu-upgrade-qemu-system-x86-microvmubuntu-upgrade-qemu-system-x86-xen
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