CVE-2024-25631: Unencrypted traffic between pods when using Wireguard and an external kvstore
Impact
For Cilium users who have enabled an external kvstore and Wireguard transparent encryption, traffic between pods in the affected cluster is not encrypted.
Patches
This issue affects Cilium v1.14 before v1.14.7.
This issue has been patched in Cilium v1.14.7.
Workarounds
There is no workaround to this issue - affected users are encouraged to upgrade.
Acknowledgements
The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @giorio94 and @gandro for their work on triaging and remediating this issue.
For more information
If you have any questions or comments about this advisory, please reach out on Slack.
If you think you found a related vulnerability, we strongly encourage you to report security vulnerabilities to our private security mailing list at security@cilium.io. This is a private mailing list where only members of the Cilium internal security team are subscribed to, and your report will be treated as top priority.
Other sources
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. For Cilium users who have enabled an external kvstore and Wireguard transparent encryption, traffic between pods in the affected cluster is not encrypted. This issue affects Cilium v1.14 before v1.14.7 and has been patched in Cilium v1.14.7. There is no workaround to this issue.
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
go/github.com/cilium/ciliumto a version that resolves this vulnerability.Fixed in 1.14.7 - Upgrade
Upgrade
cilium/ciliumto a version that resolves this vulnerability.Fixed in v1.14.7
Event History
Frequently Asked Questions
What is the severity of CVE-2024-25631?
CVE-2024-25631 is considered a high severity vulnerability affecting Cilium users with specific configurations.
How do I fix CVE-2024-25631?
To fix CVE-2024-25631, update Cilium to version 1.14.8 or later.
Who is affected by CVE-2024-25631?
CVE-2024-25631 affects Cilium users who have enabled an external kvstore and Wireguard transparent encryption.
What is the impact of CVE-2024-25631?
The impact of CVE-2024-25631 may compromise the security of network communications when using the affected configurations.
When was CVE-2024-25631 reported?
CVE-2024-25631 was reported in early 2024 and is addressed in the subsequent software releases.