CVE-2021-4207
- ULN >
- Oracle Linux CVE repository >
- CVE-2021-4207
CVE Details
| Release Date: | 2022-04-29 | |
| Impact: | None | What is this? |
Description
A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values cursor->header.width and cursor->header.height can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
See more information about CVE-2021-4207 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: | 8.8 |
| Vector String: | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Changed |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (qemu) | ELSA-2022-9669 | 2022-08-01 |
| Oracle Linux version 8 (hivex) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (hivex) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (hivex) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libtpms) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libtpms) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (netcf) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (netcf) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (netcf) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (seabios) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (seabios) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (seabios) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (supermin) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (supermin) | ELSA-2022-9700 | 2022-08-08 |
| Oracle Linux version 8 (supermin) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (swtpm) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (swtpm) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 8 (virt-v2v) | ELSA-2022-5821 | 2022-08-05 |
| Oracle Linux version 8 (virt-v2v) | ELSA-2022-9862 | 2022-10-13 |
| Oracle Linux version 9 (qemu-kvm) | ELSA-2022-9869 | 2022-10-10 |
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections:
- Oracle customers - enter a support request
- Vulnerability scanning tools vendors and project maintainers - follow the standard ISV process
