CVE-2022-31076: CloudCore UDS Server Malicious Message Can Crash CloudCore Vulnerability
MODERATECVE-2022-31076 is a MODERATE (CVSS 4.2) malicious message can crash cloudcore vulnerability (CWE-476: NULL Pointer Dereference) affecting CloudCore UDS Server libraries in the Go ecosystem. The issue involves malicious message can crash cloudcore. Remediation is available by upgrading affected packages to version 1.10.1, 1.9.3.
CVE-2022-31076 at a Glance
Security Impact
CVSS: 4.2
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
How to Fix CVE-2022-31076
To remediate this vulnerability, upgrade all affected CloudCore UDS Server 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/kubeedge/kubeedge to 1.10.1
Upgrade github.com/kubeedge/kubeedge to 1.9.3
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/kubeedge/kubeedge
How to Check if You Are Affected
To determine whether your application is affected by CVE-2022-31076, inspect your project dependencies for CloudCore UDS Server:
inspect dependencies for github.com/kubeedge/kubeedge
Analyze the terminal output to locate any version of CloudCore UDS Server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.1), 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 CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. In CloudCore UDS Server, 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
CVE-2022-31076 Affected CloudCore UDS Server Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/kubeedge/kubeedge
|
Go |
≥ 1.10.0
< 1.10.1
All 1 versions
1.10.0
|
1.10.1
|
|
github.com/kubeedge/kubeedge
|
Go |
< 1.9.3
|
1.9.3
|
References
Frequently Asked Questions
What is CVE-2022-31076?
Which CloudCore UDS Server versions are affected?
What version fixes CVE-2022-31076?
Is github.com/kubeedge/kubeedge affected?
What is the CVSS score of CVE-2022-31076?
What CWE is associated with CVE-2022-31076?
How can I check Go dependencies for CVE-2022-31076?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-8f4f-v9x5-cg6j",
"modified" : "2022-06-25T07:19:34Z",
"published" : "2022-06-25T07:19:34Z",
"aliases" : [ "CVE-2022-31076" ],
"summary" : "CloudCore UDS Server: Malicious Message can crash CloudCore",
"details" : "### Impact\nA malicious message can crash CloudCore by triggering a null-pointer dereference in the UDS Server. Since the UDS Server only communicates with the CSI Driver on the cloud side, the attack is limited to the local host network. As such, an attacker would already need to be an authenticated user of the Cloud.\n \nIt will be affected only when users turn on the unixsocket switch in the config file `cloudcore.yaml` as below:\n```\nmodules:\n cloudHub:\n ...\n unixsocket:\n address: xxx\n enable: true\n```\n\n### Patches\nThis bug has been fixed in Kubeedge 1.11.0, 1.10.1, and 1.9.3. Users should update to these versions to resolve the issue.\n\n### Workarounds\nDisable the unixsocket switch of CloudHub in the config file `cloudcore.yaml`.\n\n### References\nNA\n\n### Credits\nThanks David Korczynski and Adam Korczynski of ADA Logics for responsibly disclosing this issue in accordance with the [kubeedge security policy](https://github.com/kubeedge/kubeedge/security/policy) during a security audit sponsored by CNCF and facilitated by OSTIF.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [KubeEdge repo](https://github.com/kubeedge/kubeedge/issues/new/choose)\n* To make a vulnerability report, email your vulnerability to the private [cncf-kubeedge-security@lists.cncf.io](mailto:cncf-kubeedge-security@lists.cncf.io) list with the security details and the details expected for [KubeEdge bug reports](https://github.com/kubeedge/kubeedge/blob/master/.github/ISSUE_TEMPLATE/bug-report.md).\n\n**Notes:** This vulnerability was found by fuzzing KubeEdge by way of OSS-Fuzz.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/kubeedge/kubeedge"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.10.0"
}, {
"fixed" : "1.10.1"
} ]
} ],
"versions" : [ "1.10.0" ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/kubeedge/kubeedge"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.9.3"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/kubeedge/kubeedge/security/advisories/GHSA-8f4f-v9x5-cg6j"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-31076"
}, {
"type" : "WEB",
"url" : "https://github.com/kubeedge/kubeedge/pull/3899/commits/5d60ae9eabd6b6b7afe38758e19bbe8137664701"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/kubeedge/kubeedge"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-476" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2022-06-25T07:19:34Z",
"nvd_published_at" : "2022-06-27T20:15:00Z"
}
}