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nvd[email protected]NVD:CVE-2020-27777
HistoryDec 15, 2020 - 5:15 p.m.

CVE-2020-27777

2020-12-1517:15:14
CWE-862
[email protected]
web.nvd.nist.gov
7
rtas
memory access
powervm
kvm
hypervisors
privilege escalation
security flaw

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

6.8

Confidence

High

EPSS

0

Percentile

5.1%

JSON

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 configurations

Nvd
Node
linuxlinux_kernelRange<4.14.204
OR
linuxlinux_kernelRange4.15–4.19.155
OR
linuxlinux_kernelRange4.20–5.4.75
OR
linuxlinux_kernelRange5.5–5.9.5
Node
redhatopenshift_container_platformMatch4.4
OR
redhatopenshift_container_platformMatch4.5
OR
redhatopenshift_container_platformMatch4.6
OR
redhatenterprise_linuxMatch5.0
OR
redhatenterprise_linuxMatch6.0
OR
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0

Related

cvelist 1
cve 1
ibm 3
prion 1
redhatcve 1
ubuntucve 1
cbl_mariner 1
f5 1
debiancve 1
openvas 35
nessus 57
ubuntu 4
oraclelinux 2
redhat 6
osv 6
centos 1
suse 6
cloudfoundry 1
photon 2
amazon 3
almalinux 1
cvelist
cvelist
CVE-2020-27777
2020-12-15 16:57:45
cve
cve
CVE-2020-27777
2020-12-15 17:15:14
ibm
ibm
Security Bulletin: Vulnerability in Linux Kernel affects IBM Integrated Analytics System.
2022-04-20 08:52:46
Security Bulletin: IBM QRadar SIEM is vulnerable to using components with known vulnerabilities
2021-12-03 18:47:00
Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities
2021-10-11 18:12:27
prion
prion
Design/Logic Flaw
2020-12-15 17:15:00
redhatcve
redhatcve
CVE-2020-27777
2020-11-23 20:51:58
ubuntucve
ubuntucve
CVE-2020-27777
2020-12-15 00:00:00
cbl_mariner
cbl_mariner
CVE-2020-27777 affecting package kernel 5.4.91-6
2021-01-29 07:40:05
f5
f5
K61294700 : Linux kernel vulnerability CVE-2020-27777
2021-11-05 00:00:00
debiancve
debiancve
CVE-2020-27777
2020-12-15 17:15:14
openvas
openvas
SUSE: Security Advisory (SUSE-SU-2020:3714-1)
2021-06-09 00:00:00
CentOS: Security Advisory for bpftool (CESA-2021:3327)
2021-09-02 00:00:00
Ubuntu: Security Advisory (USN-4708-1)
2021-01-29 00:00:00
nessus
nessus
RHEL 7 : kernel (RHSA-2021:3327)
2021-09-01 00:00:00
Scientific Linux Security Update : kernel on SL7.x x86_64 (2021:3327)
2021-09-01 00:00:00
Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4708-1)
2021-01-28 00:00:00
ubuntu
ubuntu
Linux kernel vulnerabilities
2021-01-28 00:00:00
Linux kernel vulnerabilities
2021-01-06 00:00:00
Linux kernel vulnerabilities
2021-01-06 00:00:00
oraclelinux
oraclelinux
kernel security and bug fix update
2021-08-31 00:00:00
kernel security, bug fix, and enhancement update
2021-11-16 00:00:00
redhat
redhat
(RHSA-2021:3327) Important: kernel security and bug fix update
2021-08-31 07:45:12
(RHSA-2021:3653) Important: Red Hat Advanced Cluster Management 2.1.11 security fix and container updates
2021-09-23 14:58:27
(RHSA-2021:3454) Low: Red Hat Advanced Cluster Management 2.3.2 security and bug fix update
2021-09-07 19:12:34
osv
osv
linux, linux-lts-xenial vulnerabilities
2021-01-28 07:09:44
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
2021-01-06 03:24:21
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
2021-01-06 03:41:27
centos
centos
bpftool, kernel, perf, python security update
2021-08-31 21:19:47
suse
suse
Security update for the Linux Kernel (important)
2020-12-07 00:00:00
Security update for the Linux Kernel (important)
2020-12-05 00:00:00
Security update for the Linux Kernel (important)
2020-12-15 00:00:00
cloudfoundry
cloudfoundry
USN-4680-1: Linux kernel vulnerabilities | Cloud Foundry
2021-02-10 00:00:00
photon
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Important Photon OS Security Update - PHSA-2020-0174
2020-12-10 00:00:00
Important Photon OS Security Update - PHSA-2020-3.0-0174
2020-12-10 00:00:00
amazon
amazon
Medium: kernel
2020-12-16 20:31:00
Important: kernel
2020-12-08 20:55:00
Medium: kernel
2021-01-12 22:51:00
almalinux
almalinux
Moderate: kernel security, bug fix, and enhancement update
2021-11-09 09:08:02

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

6.8

Confidence

High

EPSS

0

Percentile

5.1%

JSON
Related for NVD:CVE-2020-27777
cvelist1cve1ibm3prion1redhatcve1ubuntucve1cbl_mariner1f51debiancve1openvas35nessus57ubuntu4oraclelinux2redhat6osv6centos1suse6cloudfoundry1photon2amazon3almalinux1