VulnerabilityModified
CVE-2021-25737
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node.
MEDIUM 4.8EPSS 1.33%
Does this matter?
Lower severity and a low EPSS score (1.33%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.33% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-184, CWE-601
- Affected
- kubernetes/kubernetes
- Source
- jordan@liggitt.net
References
- https://github.com/kubernetes/kubernetes/issues/102106Patch, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thYMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211004-0004/Third Party Advisory
- https://github.com/kubernetes/kubernetes/issues/102106Patch, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thYMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211004-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.