CVE-2024-40767
Description
An arbitrary file access flaw was found in Nova. By supplying a RAW format image, a specially crafted QCOW2 image with a backing file path, or a VMDK flat image with a descriptor file path, an authenticated user may convince systems to return a copy of the referenced file’s contents from the server. This issue results in unauthorized access to potentially sensitive data.
Statement
This vulnerability was rated with a severity of Important due to the potential to read sensitive information from a Nova compute host. This vulnerability was introduced as a result of the fixes for CVE-2024-32498 and only affects versions of Nova that include the patches for CVE-2024-32498.
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 | 5.5 | 6.5 | 6.5 |
| Attack Vector | Local | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | None | None |
| Integrity Impact | None | None | None |
| Availability Impact | None | High | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Files or Directories; Modify Files or Directories
Acknowledgements
Red Hat would like to thank Arnaud Morin (OVH) for reporting this issue.
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