CVE-2020-36210: Autorand Free Of Uninitialized Memory Vulnerability

HIGH
Advisory Identifier: GHSA-cgmg-2v6m-fjg7
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CVSS 7.8
CWE-908
Published
Advisory Summary

CVE-2020-36210 is a HIGH (CVSS 7.8) free of uninitialized memory vulnerability (CWE-908: Use of Uninitialized Resource) affecting Autorand libraries in the crates.io ecosystem. The issue involves free of uninitialized memory in autorand. Remediation is available by upgrading affected packages to version 0.2.3.

CVE-2020-36210 at a Glance

CVE Identifier CVE-2020-36210
GHSA Identifier GHSA-cgmg-2v6m-fjg7
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-908: Use of Uninitialized Resource
Affected Product Autorand
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

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

How to Fix CVE-2020-36210

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

autorand fixed: 0.2.3 
Upgrade autorand to 0.2.3
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 autorand

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-36210, inspect your project dependencies for Autorand:

inspect dependencies for autorand

Analyze the terminal output to locate any version of Autorand in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.3), 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 Autorand, 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 autorand crate before 0.2.3 for Rust. Because of impl Random on arrays, uninitialized memory can be dropped when a panic occurs, leading to memory corruption.

CVE-2020-36210 Affected Autorand Versions

1 component(s)
Fixed Versions:
0.2.3
Product / Package Ecosystem Affected Versions Fixed Version
autorand
 crates.io
< 0.2.3
0.2.3

References

NVD — CVE-2020-36210 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36210
Autorand Source Repository REPOSITORY
https://github.com/mersinvald/autorand-rs/issues/5
Autorand Source Repository REPOSITORY
https://github.com/mersinvald/autorand-rs
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2020-0103.html

Frequently Asked Questions

What is CVE-2020-36210?
CVE-2020-36210 is a security vulnerability in Autorand involving Free of uninitialized memory in autorand under CWE-908: Use of Uninitialized Resource.
Which Autorand versions are affected?
Affected versions include releases prior to 0.2.3 across affected packages: autorand.
What version fixes CVE-2020-36210?
Upgrading to 0.2.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is autorand affected?
Yes, autorand is affected in releases prior to 0.2.3. Upgrade your dependency to 0.2.3 or later.
What is the CVSS score of CVE-2020-36210?
CVE-2020-36210 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-36210?
CVE-2020-36210 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-2020-36210?
Run the dependency tree command: 'inspect dependencies for autorand'. 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-cgmg-2v6m-fjg7",
  "modified" : "2021-08-19T18:53:20Z",
  "published" : "2021-08-25T20:50:41Z",
  "aliases" : [ "CVE-2020-36210" ],
  "summary" : "Free of uninitialized memory in autorand",
  "details" : "An issue was discovered in the autorand crate before 0.2.3 for Rust. Because of impl Random on arrays, uninitialized memory can be dropped when a panic occurs, leading to memory corruption.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "autorand"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-36210"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mersinvald/autorand-rs/issues/5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mersinvald/autorand-rs"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2020-0103.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-908" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-19T18:53:20Z",
    "nvd_published_at" : null
  }
}