GHSA-pfhr-pccp-hwmh: Github.com/cilium/cilium Network Policies & (Clusterwide) Cilium Vulnerability
MODERATEGHSA-pfhr-pccp-hwmh is a MODERATE (CVSS 4.3) network policies & (clusterwide) cilium vulnerability (General Security Weakness) affecting Github.com/cilium/cilium libraries in the Go ecosystem. The issue involves network policies & (clusterwide) cilium network policies with namespace label selectors may unexpectedly select pods with maliciously crafted labels. Remediation is available by upgrading affected packages to version 1.10.14, 1.11.8, 1.12.1.
GHSA-pfhr-pccp-hwmh at a Glance
Security Impact
CVSS: 4.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).
How to Fix GHSA-pfhr-pccp-hwmh
To remediate this vulnerability, upgrade all affected Github.com/cilium/cilium dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/cilium/cilium to 1.10.14
Upgrade github.com/cilium/cilium to 1.11.8
Upgrade github.com/cilium/cilium to 1.12.1
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/cilium/cilium
How to Check if You Are Affected
To determine whether your application is affected by GHSA-pfhr-pccp-hwmh, inspect your project dependencies for Github.com/cilium/cilium:
inspect dependencies for github.com/cilium/cilium
Analyze the terminal output to locate any version of Github.com/cilium/cilium in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.14), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under General Security Weakness. In Github.com/cilium/cilium, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
GHSA-pfhr-pccp-hwmh Affected Github.com/cilium/cilium Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/cilium/cilium
|
Go |
< 1.10.14
|
1.10.14
|
|
github.com/cilium/cilium
|
Go |
≥ 1.11.0
< 1.11.8
|
1.11.8
|
|
github.com/cilium/cilium
|
Go |
≥ 1.12.0
< 1.12.1
All 1 versions
1.12.0
|
1.12.1
|
References
Frequently Asked Questions
What is GHSA-pfhr-pccp-hwmh?
Which Github.com/cilium/cilium versions are affected?
What version fixes GHSA-pfhr-pccp-hwmh?
Is github.com/cilium/cilium affected?
What is the CVSS score of GHSA-pfhr-pccp-hwmh?
What CWE is associated with GHSA-pfhr-pccp-hwmh?
How can I check Go dependencies for GHSA-pfhr-pccp-hwmh?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-pfhr-pccp-hwmh",
"modified" : "2022-08-30T20:06:02Z",
"published" : "2022-08-30T20:06:02Z",
"aliases" : [ ],
"summary" : "Network Policies & (Clusterwide) Cilium Network Policies with namespace label selectors may unexpectedly select pods with maliciously crafted labels",
"details" : "### Impact\n\nIf a user has Network Policies with namespace selectors selecting labels of namespaces, or (clusterwide) Cilium Network Policies matching on namespace labels, then it is possible for an attacker with Kubernetes pod deploy rights (either directly or indirectly via higher-level APIs such as Deployment, Daemonset etc) to craft additional pod labels such that the pod is selected by another policy that exists rather than the expected policy. \n\n### Patches\n\nThe problem has been fixed and is available on versions >=1.10.14, >=1.11.8, >=1.12.1\n\n### Workarounds\n\nThere are no workarounds available.\n\n### Acknowledgements\n\nThe Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to Sander Mathijssen for not only highlighting the issue but also proposing a resolution. \n\n### For more information\n\nIf you have any questions or comments about this advisory, please reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack).\n\nAs usual, if you think you found a related vulnerability, we strongly encourage you to report security vulnerabilities to our private security mailing list: [security@cilium.io](mailto:security@cilium.io) - first, before disclosing them in any public forums. This is a private mailing list where only members of the Cilium internal security team are subscribed to, and is treated as top priority.\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/cilium/cilium"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.10.14"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.10.13"
}
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/cilium/cilium"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.11.0"
}, {
"fixed" : "1.11.8"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.11.7"
}
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/cilium/cilium"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.12.0"
}, {
"fixed" : "1.12.1"
} ]
} ],
"versions" : [ "1.12.0" ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/cilium/cilium/security/advisories/GHSA-pfhr-pccp-hwmh"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/cilium/cilium"
}, {
"type" : "WEB",
"url" : "https://github.com/cilium/cilium/releases/tag/v1.10.14"
}, {
"type" : "WEB",
"url" : "https://github.com/cilium/cilium/releases/tag/v1.11.8"
}, {
"type" : "WEB",
"url" : "https://github.com/cilium/cilium/releases/tag/v1.12.1"
} ],
"database_specific" : {
"cwe_ids" : [ ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2022-08-30T20:06:02Z",
"nvd_published_at" : null
}
}