CVE-2020-15687
Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.68% probability · 76th percentile
- CISA KEV
- Not listed
- Affected
- linuxfoundation/acrn
- Source
- cve@mitre.org
References
- https://projectacrn.github.io/2.1/asa.html#addressed-in-acrn-v2-1Third Party Advisory
- https://projectacrn.github.io/latest/Third Party Advisory
- https://projectacrn.github.io/latest/developer-guides/hld/split-dm.htmlThird Party Advisory
- https://projectacrn.github.io/2.1/asa.html#addressed-in-acrn-v2-1Third Party Advisory
- https://projectacrn.github.io/latest/Third Party Advisory
- https://projectacrn.github.io/latest/developer-guides/hld/split-dm.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.