Description
A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2020-20281 | A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel. |
Ubuntu USN |
USN-4679-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-4680-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-4708-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-4751-1 | Linux kernel vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-04T16:25:42.438Z
Reserved: 2020-10-27T00:00:00.000Z
Link: CVE-2020-27777
No data.
Status : Modified
Published: 2020-12-15T17:15:14.333
Modified: 2024-11-21T05:21:48.973
Link: CVE-2020-27777
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN