vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-3416): QEMU vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | Mar 18, 2021 | Jul 16, 2021 | Aug 18, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Mar 18, 2021
Added
Jul 16, 2021
Modified
Aug 18, 2025
Description
A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.
Solutions
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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