CVE-2019-16144: Generator Uninitialized Memory Use Vulnerability

HIGH
Advisory Identifier: GHSA-6c65-xcf5-299x
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CVSS 7.5
CWE-908
Published
Advisory Summary

CVE-2019-16144 is a HIGH (CVSS 7.5) uninitialized memory use vulnerability (CWE-908: Use of Uninitialized Resource) affecting Generator libraries in the crates.io ecosystem. The issue involves uninitialized memory use in generator. Remediation is available by upgrading affected packages to version 0.6.18.

CVE-2019-16144 at a Glance

CVE Identifier CVE-2019-16144
GHSA Identifier GHSA-6c65-xcf5-299x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-908: Use of Uninitialized Resource
Affected Product Generator
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2019-16144

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

generator fixed: 0.6.18 
Upgrade generator to 0.6.18
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 generator

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-16144, inspect your project dependencies for Generator:

inspect dependencies for generator

Analyze the terminal output to locate any version of Generator in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.6.18), 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-908: Use of Uninitialized Resource, where the product uses or accesses a resource that has not been initialized. In Generator, 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

An issue was discovered in the generator crate before 0.6.18 for Rust. Uninitialized memory is used by Scope, done, and yield_ during API calls.

CVE-2019-16144 Affected Generator Versions

1 component(s)
Fixed Versions:
0.6.18
Product / Package Ecosystem Affected Versions Fixed Version
generator
 crates.io
< 0.6.18
0.6.18

References

NVD — CVE-2019-16144 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-16144
Generator Source Repository REPOSITORY
https://github.com/Xudong-Huang/generator-rs/issues/11
Generator Source Repository REPOSITORY
https://github.com/Xudong-Huang/generator-rs/issues/13
Generator Source Repository REPOSITORY
https://github.com/Xudong-Huang/generator-rs/issues/14
Generator Source Repository REPOSITORY
https://github.com/Xudong-Huang/generator-rs/issues/9
Generator Source Repository REPOSITORY
https://github.com/Xudong-Huang/generator-rs
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2019-0020.html

Frequently Asked Questions

What is CVE-2019-16144?
CVE-2019-16144 is a security vulnerability in Generator involving Uninitialized memory use in generator under CWE-908: Use of Uninitialized Resource.
Which Generator versions are affected?
Affected versions include releases prior to 0.6.18 across affected packages: generator.
What version fixes CVE-2019-16144?
Upgrading to 0.6.18 (or the latest patched release for your respective branch) resolves the vulnerability.
Is generator affected?
Yes, generator is affected in releases prior to 0.6.18. Upgrade your dependency to 0.6.18 or later.
What is the CVSS score of CVE-2019-16144?
CVE-2019-16144 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2019-16144?
CVE-2019-16144 is classified under CWE-908: Use of Uninitialized Resource (The product uses or accesses a resource that has not been initialized.).
How can I check crates.io dependencies for CVE-2019-16144?
Run the dependency tree command: 'inspect dependencies for generator'. 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-6c65-xcf5-299x",
  "modified" : "2021-08-18T17:52:08Z",
  "published" : "2021-08-25T20:58:25Z",
  "aliases" : [ "CVE-2019-16144" ],
  "summary" : "Uninitialized memory use in generator",
  "details" : "An issue was discovered in the generator crate before 0.6.18 for Rust. Uninitialized memory is used by Scope, done, and yield_ during API calls.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "generator"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.6.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-16144"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Xudong-Huang/generator-rs/issues/11"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Xudong-Huang/generator-rs/issues/13"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Xudong-Huang/generator-rs/issues/14"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Xudong-Huang/generator-rs/issues/9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Xudong-Huang/generator-rs"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2019-0020.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-908" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-18T17:52:08Z",
    "nvd_published_at" : "2019-09-09T12:15:00Z"
  }
}