Cortex-A77: Exposure of Resource to Wrong Sphere
CVE-2024-5660 is a critical-severity exposure of resource to wrong sphere vulnerability in Cortex-A77 from Arm, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Cortex-A77 versions: 0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.55% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Cortex-A77 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on developer.arm.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 |
|---|---|---|---|
| Arm | Cortex-A77 | 0 | Not stated |
| Arm | Neoverse V1 | 0 | Not stated |
| Arm | Cortex-A78AE | 0 | Not stated |
| Arm | Cortex-78C | 0 | Not stated |
| Arm | Cortex-X1C | 0 | Not stated |
| Arm | Cortex-A78 | 0 | Not stated |
| Arm | Cortex-X1 | 0 | Not stated |
| Arm | Neoverse N2 | 0 | Not stated |
| Arm | Cortex-A710 | 0 | Not stated |
| Arm | Cortex-X2 | 0 | Not stated |
| Arm | Neoverse V2 | 0 | Not stated |
| Arm | Cortex-X3 | 0 | Not stated |
| Arm | Neoverse V3AE | 0 | Not stated |
| Arm | Neoverse V3 | 0 | Not stated |
| Arm | Cortex-X4 | 0 | Not stated |
| Arm | Cortex-X925 | 0 | Not stated |
| Arm | Cortex-a710 Firmware | Not specified in the record | Not stated |
| Arm | Cortex-a77 Firmware | Not specified in the record | Not stated |
| Arm | Cortex-a78 Firmware | Not specified in the record | Not stated |
| Arm | Cortex-a78ae Firmware | Not specified in the record | Not stated |
| Arm | Cortex-a78c Firmware | Not specified in the record | Not stated |
| Arm | Cortex-x1 Firmware | Not specified in the record | Not stated |
| Arm | Cortex-x1c Firmware | Not specified in the record | Not stated |
| Arm | Cortex-x2 Firmware | Not specified in the record | Not stated |
| Arm | Cortex-x3 Firmware | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE; 7 further products are omitted here. 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
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
Use of Hardware Page Aggregation (HPA) and Stage-1 and/or Stage-2 translation on Cortex-A77, Cortex-A78, Cortex-A78C, Cortex-A78AE, Cortex-A710, Cortex-X1, Cortex-X1C, Cortex-X2, Cortex-X3, Cortex-X4, Cortex-X925, Neoverse V1, Neoverse V2, Neoverse V3, Neoverse V3AE, Neoverse N2 may permit bypass of Stage-2 translation and/or GPT protection.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Exposure of Resource to Wrong Sphere
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
More Exposure of Resource to Wrong Sphere vulnerabilities (CWE-668)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Cortex-A77
- 8.4 High severity
Recent Exposure of Resource to Wrong Sphere vulnerabilities
- 7.2 High severity
- 7.1 High severity
- 7.5 High severity
- 8.2 High severity
- 7.1 High severity
- 9.3 Critical severity
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