GHSA-mcrf-7hf9-f6q5: Rmpv Unchecked Vector Pre-allocation Vulnerability

MODERATE
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CWE-400
Published
Advisory Summary

GHSA-mcrf-7hf9-f6q5 is a MODERATE unchecked vector pre-allocation vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Rmpv libraries in the crates.io ecosystem. The issue involves unchecked vector pre-allocation. Remediation is available by upgrading affected packages to version 0.4.2.

GHSA-mcrf-7hf9-f6q5 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-mcrf-7hf9-f6q5
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Rmpv
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-mcrf-7hf9-f6q5

To remediate this vulnerability, upgrade all affected Rmpv dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

rmpv fixed: 0.4.2 
Upgrade rmpv to 0.4.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for rmpv

How to Check if You Are Affected

To determine whether your application is affected by GHSA-mcrf-7hf9-f6q5, inspect your project dependencies for Rmpv:

inspect dependencies for rmpv

Analyze the terminal output to locate any version of Rmpv in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4.2), 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Rmpv, 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

Affected versions of this crate pre-allocate memory on deserializing raw buffers without checking whether there is sufficient data available. This allows an attacker to do denial-of-service attacks by sending small msgpack messages that allocate gigabytes of memory.

GHSA-mcrf-7hf9-f6q5 Affected Rmpv Versions

1 component(s)
Fixed Versions:
0.4.2
Product / Package Ecosystem Affected Versions Fixed Version
rmpv
 crates.io
< 0.4.2
0.4.2

References

Rmpv Source Repository REPOSITORY
https://github.com/3Hren/msgpack-rust/issues/151
Rmpv Source Repository REPOSITORY
https://github.com/3Hren/msgpack-rust
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2017-0006.html

Frequently Asked Questions

What is GHSA-mcrf-7hf9-f6q5?
GHSA-mcrf-7hf9-f6q5 is a security vulnerability in Rmpv involving Unchecked vector pre-allocation under CWE-400: Uncontrolled Resource Consumption.
Which Rmpv versions are affected?
Affected versions include releases prior to 0.4.2 across affected packages: rmpv.
What version fixes GHSA-mcrf-7hf9-f6q5?
Upgrading to 0.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rmpv affected?
Yes, rmpv is affected in releases prior to 0.4.2. Upgrade your dependency to 0.4.2 or later.
What CWE is associated with GHSA-mcrf-7hf9-f6q5?
GHSA-mcrf-7hf9-f6q5 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check crates.io dependencies for GHSA-mcrf-7hf9-f6q5?
Run the dependency tree command: 'inspect dependencies for rmpv'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mcrf-7hf9-f6q5",
  "modified" : "2023-06-13T20:48:55Z",
  "published" : "2021-08-25T21:00:09Z",
  "aliases" : [ ],
  "summary" : "Unchecked vector pre-allocation",
  "details" : "Affected versions of this crate pre-allocate memory on deserializing raw buffers without checking whether there is sufficient data available. This allows an attacker to do denial-of-service attacks by sending small msgpack messages that allocate gigabytes of memory.\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "rmpv"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/3Hren/msgpack-rust/issues/151"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/3Hren/msgpack-rust"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2017-0006.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-06T19:28:40Z",
    "nvd_published_at" : null
  }
}