7.2

CVE-2020-27777

Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.14.204
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.155
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.75
Linux ≫ Linux Kernel Version >= 5.5 < 5.9.5
Redhat ≫ Enterprise Linux Version5.0
Redhat ≫ Enterprise Linux Version6.0
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.03% 0.057
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.7 0.8 5.9
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://bugzilla.redhat.com/show_bug.cgi?id=1900844
Patch
Third Party Advisory
Issue Tracking
https://www.openwall.com/lists/oss-security/2020/10/09/1
Patch
Third Party Advisory
Exploit
Mailing List