CVE-2023-22466: Tokio Tokio Reject_remote_clients Configuration May Get Vulnerability
MODERATECVE-2023-22466 is a MODERATE (CVSS 5.4) tokio reject_remote_clients configuration may get vulnerability (CWE-665: Improper Initialization) affecting Tokio libraries in the crates.io ecosystem. The issue involves tokio reject_remote_clients configuration may get dropped when creating a windows named pipe. Remediation is available by upgrading affected packages to version 1.18.4, 1.20.3, 1.23.1.
CVE-2023-22466 at a Glance
Security Impact
CVSS: 5.4
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:L/I:N/A:L).
How to Fix CVE-2023-22466
To remediate this vulnerability, upgrade all affected Tokio 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 tokio to 1.18.4Upgrade tokio to 1.20.3Upgrade tokio to 1.23.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for tokioHow to Check if You Are Affected
To determine whether your application is affected by CVE-2023-22466, inspect your project dependencies for Tokio:
inspect dependencies for tokioAnalyze the terminal output to locate any version of Tokio in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.18.4), 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-665: Improper Initialization, where the product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. In Tokio, 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-2023-22466 Affected Tokio Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
tokio
|
crates.io |
≥ 1.7.0
< 1.18.4
|
1.18.4
|
|
tokio
|
crates.io |
≥ 1.19.0
< 1.20.3
|
1.20.3
|
|
tokio
|
crates.io |
≥ 1.21.0
< 1.23.1
|
1.23.1
|
References
Frequently Asked Questions
What is CVE-2023-22466?
Which Tokio versions are affected?
What version fixes CVE-2023-22466?
Is tokio affected?
What is the CVSS score of CVE-2023-22466?
What CWE is associated with CVE-2023-22466?
How can I check crates.io dependencies for CVE-2023-22466?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-7rrj-xr53-82p7",
"modified" : "2023-01-06T21:40:58Z",
"published" : "2023-01-06T21:40:58Z",
"aliases" : [ "CVE-2023-22466" ],
"summary" : "Tokio reject_remote_clients configuration may get dropped when creating a Windows named pipe",
"details" : "### Impact\n\nWhen configuring a Windows named pipe server, setting `pipe_mode` will reset `reject_remote_clients` to `false`. If the application has previously configured `reject_remote_clients` to `true`, this effectively undoes the configuration. This also applies if `reject_remote_clients` is not explicitly set as this is the default configuration and is cleared by calling `pipe_mode`.\n\nRemote clients may only access the named pipe if the named pipe's associated path is accessible via a publically shared folder (SMB).\n\n### Patches\n\nThe following versions have been patched:\n* 1.23.1\n* 1.20.3\n* 1.18.4\n\nThe fix will also be present in all releases starting from version 1.24.0.\n\nNamed pipes were introduced to Tokio in version 1.7.0, so releases older than 1.7.0 are not affected.\n\n### Workarounds\n\nEnsure that `pipe_mode` is set **first** after initializing a `ServerOptions`. For example:\n\n```rust\nlet mut opts = ServerOptions::new();\nopts.pipe_mode(PipeMode::Message);\nopts.reject_remote_clients(true);\n```\n\n### References\n\nhttps://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clients\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "crates.io",
"name" : "tokio"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.7.0"
}, {
"fixed" : "1.18.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "crates.io",
"name" : "tokio"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.19.0"
}, {
"fixed" : "1.20.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "crates.io",
"name" : "tokio"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.21.0"
}, {
"fixed" : "1.23.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-22466"
}, {
"type" : "WEB",
"url" : "https://github.com/tokio-rs/tokio/pull/5336"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/tokio-rs/tokio"
}, {
"type" : "WEB",
"url" : "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.1"
}, {
"type" : "WEB",
"url" : "https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clients"
}, {
"type" : "WEB",
"url" : "https://rustsec.org/advisories/RUSTSEC-2023-0001.html"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-665" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-01-06T21:40:58Z",
"nvd_published_at" : "2023-01-04T22:15:00Z"
}
}