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githubGitHub Advisory DatabaseGHSA-WXC4-F4M6-WWQV
HistoryDec 20, 2021 - 4:55 p.m.

Excessive Platform Resource Consumption within a Loop in Kubernetes

2021-12-2016:55:06
CWE-1050
GitHub Advisory Database
github.com
34
kubernetes
resource consumption
api server
cpu cycles
yaml payloads
security vulnerability

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.9%

The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.

Affected configurations

Vulners
Node
go-yamlyamlRangeโ‰ค2.1.0
OR
gopkg.inyaml.v2Range<2.2.8
VendorProductVersionCPE
go-yamlyaml*cpe:2.3:a:go-yaml:yaml:*:*:*:*:*:*:*:*
gopkg.inyaml.v2*cpe:2.3:a:gopkg.in:yaml.v2:*:*:*:*:*:*:*:*

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.9%