PowerScale OneFS: Insufficient Resource Pool
CVE-2022-46679 is a high-severity insufficient resource pool vulnerability in PowerScale OneFS from Dell, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected PowerScale OneFS versions: 8.2.x;9.0.0.x through 9.4.0.x. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.79% chance of exploitation within 30 days, higher than 57% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Emc Powerscale Onefs to 9.1.0.26 or 9.2.1.19 or 9.4.0.10, whichever matches your release line, or a later version.
- Read the advisory on dell.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dell | PowerScale OneFS | 8.2.x;9.0.0.x through 9.4.0.x | Not stated |
| Dell | Emc Powerscale Onefs | 9.1.0.0 up to, but not including, 9.1.0.26; 9.2.1.0 up to, but not including, 9.2.1.19; 9.4.0.0 up to, but not including, 9.4.0.10 | 9.1.0.26, 9.2.1.19, 9.4.0.10 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.5 | Medium | CNA (emc.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Dell PowerScale OneFS 8.2.x, 9.0.0.x - 9.4.0.x, contain an insufficient resource pool vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to denial of service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Resource Pool
The product's resource pool is not large enough to handle peak demand.
How developers prevent this class of flaw
- Do not perform resource-intensive transactions for unauthenticated users and/or invalid requests.
- Consider implementing a velocity check mechanism which would detect abusive behavior.
- Consider load balancing as an option to handle heavy loads.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in PowerScale OneFS
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Insufficient Resource Pool vulnerabilities
- 7.5 High severity
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