CVE-2023-2680
Description
This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750.
Statement
A user who installs or updates to Red Hat Enterprise Linux 9.1 would be vulnerable to the CVE-2021-3750, even if it was declared fixed in the following advisory:
https://access.redhat.com/errata/RHSA-2022:7967
The advisory provided updates for qemu-kvm package, but did not actually include fixes for CVE-2021-3750. The CVE-2023-2680 was assigned to this Red Hat specific issue and it is not applicable to any upstream QEMU version or QEMU packages of any other vendor that are not directly based on Red Hat Enterprise Linux packages.
For more details about the original security flaw CVE-2021-3750, refer to the CVE page: https://access.redhat.com/security/cve/CVE-2021-3750.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 8.2 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | High | Low | N/A |
| Privileges Required | High | High | N/A |
| User Interaction | None | None | N/A |
| Scope | Changed | Changed | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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