CVE-2021-3507
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- CVE-2021-3507
CVE Details
| Release Date: | 2021-05-06 | |
| Impact: | None | What is this? |
Description
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
See more information about CVE-2021-3507 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 6.1 |
| Vector String: | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | None |
| Availability Impact: | Low |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (qemu) | ELSA-2022-9669 | 2022-08-01 |
| Oracle Linux version 8 (hivex) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (hivex) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libtpms) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (netcf) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (netcf) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (seabios) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (seabios) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (supermin) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (supermin) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (swtpm) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 8 (virt-v2v) | ELSA-2022-7472 | 2022-11-15 |
| Oracle Linux version 9 (qemu-kvm) | ELSA-2022-7967 | 2022-11-22 |
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