Not rated
CVE-2020-27777 A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- www.openwall.com www.openwall.com
- www.openwall.com www.openwall.com
- git.kernel.org git.kernel.org
Timeline
- Published
- Last modified
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