CVE-2020-8557

Description from NVD

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.

Information Acquisition Date:2021-04-27T10:51Z
CVSS 2.0: 2.1 LOW CVSS 3.x: 5.5 MEDIUM

▼ CVSS3 Vec CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

▼ CVSS2 Vec AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD References

 https://github.com/kubernetes/kubernetes/issues/93032
     source:CONFIRM
     tags:Patch    Third Party Advisory    
 [Security Advisory] CVE-2020-8557: Node disk DOS by writing to container /etc/hosts
     source:MLIST
     tags:Mailing List    Third Party Advisory    
 https://security.netapp.com/advisory/ntap-20200821-0002/
     source:CONFIRM
     tags:

Refer to Information on External Sites

CVE InfomationExploits or more Infomation
mitreEXPLOIT DATABASE
NVD0day.today
vulmon.comgithub
CVE DetailsTwitter
JVN ENG JPN
Reconshell

Software Tag:



List of frequently cited URLs

URLNum of Times Referred to
https://alerts.vulmon.com/l/Wb216
https://azure.microsoft.com/en-us/updates/azure-kubernetes-...4
https://falco.org/blog/detect-cve-2020-8557/3
https://github.com/kubernetes/kubernetes/issues/930323
https://opsmtrs.com/3h465au3

Information from Twitter

User URL Info Source Date
threatintelctr https://nvd.nist.gov/vuln/detail/CVE-2020-8557 Source threatintelctr   1619077002492780548 2023/01/28

List of frequently cited URLs

URLNum of Times Referred to
alerts.vulmon.com216
azure.microsoft.com4
falco.org3
github.com3
opsmtrs.com3

Information from Twitter

User URL Info Source
threatintelctr nvd.nist.gov Show Tweet

GitHub Search Results: Up to 10
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2023/01/28 Score : 1
Added Har-sia Database : 2020/07/16
Last Modified : 2023/01/28
Highest Scored Date : 2020/09/02
Highest Score : 38