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ubuntucveUbuntu.comUB:CVE-2021-25737
HistorySep 06, 2021 - 12:00 a.m.

CVE-2021-25737

2021-09-0600:00:00
ubuntu.com
ubuntu.com
9

CVSS2

4.9

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.001

Percentile

25.8%

A security issue was discovered in Kubernetes where a user may be able to
redirect pod traffic to private networks on a Node. Kubernetes already
prevents creation of Endpoint IPs in the localhost or link-local range, but
the same validation was not performed on EndpointSlice IPs.

Notes

Author Note
leosilva kubernates is in fact a kubernetes installer that calls snap, not the package it self.
OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchkubernetes<ย anyUNKNOWN
ubuntu22.04noarchkubernetes<ย anyUNKNOWN
ubuntu24.04noarchkubernetes<ย anyUNKNOWN

CVSS2

4.9

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.001

Percentile

25.8%