CVE-2021-25906: Basic dsp matrix Double Free Vulnerability

HIGH
Advisory Identifier: GHSA-fjr6-hm39-4cf9
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CVSS 7.5
CWE-415
Published
Advisory Summary

CVE-2021-25906 is a HIGH (CVSS 7.5) double free vulnerability (CWE-415: Double Free) affecting Basic dsp matrix libraries in the crates.io ecosystem. The issue involves double free in basic_dsp_matrix. Remediation is available by upgrading affected packages to version 0.9.2.

CVE-2021-25906 at a Glance

CVE Identifier CVE-2021-25906
GHSA Identifier GHSA-fjr6-hm39-4cf9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-415: Double Free
Affected Product Basic dsp matrix
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-2021-25906

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

basic_dsp_matrix fixed: 0.9.2 
Upgrade basic_dsp_matrix to 0.9.2
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 basic_dsp_matrix

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-25906, inspect your project dependencies for Basic dsp matrix:

inspect dependencies for basic_dsp_matrix

Analyze the terminal output to locate any version of Basic dsp matrix in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.9.2), 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-415: Double Free, where the product calls free() twice on the same memory address. In Basic dsp matrix, 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 basic_dsp_matrix crate before 0.9.2 for Rust. When a TransformContent panic occurs, a double drop can be performed.

CVE-2021-25906 Affected Basic dsp matrix Versions

1 component(s)
Fixed Versions:
0.9.2
Product / Package Ecosystem Affected Versions Fixed Version
basic_dsp_matrix
 crates.io
< 0.9.2
0.9.2

References

NVD — CVE-2021-25906 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25906
Basic dsp matrix Source Repository REPOSITORY
https://github.com/liebharc/basic_dsp/issues/47
Basic dsp matrix Source Repository REPOSITORY
https://github.com/liebharc/basic_dsp
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2021-0009.html

Frequently Asked Questions

What is CVE-2021-25906?
CVE-2021-25906 is a security vulnerability in Basic dsp matrix involving Double free in basic_dsp_matrix under CWE-415: Double Free.
Which Basic dsp matrix versions are affected?
Affected versions include releases prior to 0.9.2 across affected packages: basic_dsp_matrix.
What version fixes CVE-2021-25906?
Upgrading to 0.9.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is basic_dsp_matrix affected?
Yes, basic_dsp_matrix is affected in releases prior to 0.9.2. Upgrade your dependency to 0.9.2 or later.
What is the CVSS score of CVE-2021-25906?
CVE-2021-25906 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-2021-25906?
CVE-2021-25906 is classified under CWE-415: Double Free (The product calls free() twice on the same memory address.).
How can I check crates.io dependencies for CVE-2021-25906?
Run the dependency tree command: 'inspect dependencies for basic_dsp_matrix'. 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-fjr6-hm39-4cf9",
  "modified" : "2021-08-19T18:46:23Z",
  "published" : "2021-08-25T20:52:50Z",
  "aliases" : [ "CVE-2021-25906" ],
  "summary" : "Double free in basic_dsp_matrix",
  "details" : "An issue was discovered in the basic_dsp_matrix crate before 0.9.2 for Rust. When a TransformContent panic occurs, a double drop can be performed.",
  "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" : "basic_dsp_matrix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.9.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-25906"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/liebharc/basic_dsp/issues/47"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/liebharc/basic_dsp"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2021-0009.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-415" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-19T18:46:23Z",
    "nvd_published_at" : null
  }
}