GHSA-rm86-h44c-2r2m CVE-2024-40767 PYSEC-2026-1709
OpenStack Nova vulnerable to unauthorized access to potentially sensitive data
- Severity
- 0.0 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 0.95%
- Chance of exploitation in the next 30 days. Higher than 61.23% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Fix
- None yet
- No fixed version published
Description
In OpenStack Nova before 27.4.1, 28 before 28.2.1, and 29 before 29.1.1, by supplying a raw format image that is actually a crafted QCOW2 image with a backing file path or 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, resulting in unauthorized access to potentially sensitive data. All Nova deployments are affected. NOTE: this issue exists because of an incomplete fix for CVE-2022-47951 and CVE-2024-32498.
Affected versions
PyPI
| Package | Vulnerable | Fixed in |
|---|---|---|
| nova | <= 27.4.0 |
No fix yet |
| nova | >= 28.0.0, <= 28.2.0 |
No fix yet |
| nova | >= 29.0.0, <= 29.1.0 |
No fix yet |
| nova | <= 27.4.0>= 28.0.0, <= 28.2.0>= 29.0.0, <= 29.1.0 |
No fix yet |
How to fix
No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- Low
- User interaction
- None
- Confidentiality (vulnerable system)
- Low
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-436: Interpretation Conflict
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
CWE-552: Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.
How to prevent it
- Implementation, System Configuration, Operation: When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to disable public access.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-mfg3-p6m3-gjgr OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints | High | Also affects nova |
| GHSA-m4f3-qp2w-gwh6 OpenStack Nova calls qemu-img without format restrictions for resize | High | Also affects nova |
| GHSA-r4v4-w9pv-6fph OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access | Medium | Also affects nova |
| GHSA-7h75-hwxx-qpgc OpenStack Cinder, glance, and Nova vulnerable to Path Traversal | Medium | Also affects nova |
| GHSA-v725-c588-h936 OpenStack Nova Changing vnic_type breaks compute service restart | Low | Also affects nova |
| GHSA-22jm-4hxw-35jf OpenStack Nova can leak consoleauth token into log files | Low | Also affects nova |
| GHSA-43cm-73px-5v4m OpenStack Compute (Nova) Resource limit circumvention in Nova private flavors | Low | Also affects nova |
| GHSA-j6xh-q826-55jw OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack | Medium | Also affects nova |
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