GHSA-6gvc-4jvj-pwq4: Duplicate Advisory Use After Free Vulnerability

MODERATE
Share
CVSS 6.5
CWE-416
Published
Advisory Summary

GHSA-6gvc-4jvj-pwq4 is a MODERATE (CVSS 6.5) use after free vulnerability (CWE-416: Use After Free) affecting Duplicate Advisory libraries in the crates.io ecosystem. The issue involves use after free in libpulse-binding. Remediation is available by upgrading affected packages to version 2.5.0.

GHSA-6gvc-4jvj-pwq4 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-6gvc-4jvj-pwq4
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-416: Use After Free
Affected Product Duplicate Advisory
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:N/I:H/A:N).

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

How to Fix GHSA-6gvc-4jvj-pwq4

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

libpulse-binding fixed: 2.5.0 
Upgrade libpulse-binding to 2.5.0
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 libpulse-binding

How to Check if You Are Affected

To determine whether your application is affected by GHSA-6gvc-4jvj-pwq4, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for libpulse-binding

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.5.0), 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f56g-chqp-22m9. This link is maintained to preserve external references. ## Original Description An issue was discovered in the libpulse-binding crate before 2.5.0 for Rust. proplist::Iterator can cause a use-after-free.

GHSA-6gvc-4jvj-pwq4 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
2.5.0
Product / Package Ecosystem Affected Versions Fixed Version
libpulse-binding
 crates.io
≥ 1.0.5
< 2.5.0
2.5.0

References

NVD — GHSA-6gvc-4jvj-pwq4 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-25001
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-6gvc-4jvj-pwq4
Duplicate Advisory Source Repository REPOSITORY
https://github.com/jnqnfe/pulse-binding-rust
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2018-0020.html

Frequently Asked Questions

What is GHSA-6gvc-4jvj-pwq4?
GHSA-6gvc-4jvj-pwq4 is a security vulnerability in Duplicate Advisory involving Use after free in libpulse-binding under CWE-416: Use After Free.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 2.5.0 across affected packages: libpulse-binding.
What version fixes GHSA-6gvc-4jvj-pwq4?
Upgrading to 2.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is libpulse-binding affected?
Yes, libpulse-binding is affected in releases prior to 2.5.0. Upgrade your dependency to 2.5.0 or later.
What is the CVSS score of GHSA-6gvc-4jvj-pwq4?
GHSA-6gvc-4jvj-pwq4 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with GHSA-6gvc-4jvj-pwq4?
GHSA-6gvc-4jvj-pwq4 is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check crates.io dependencies for GHSA-6gvc-4jvj-pwq4?
Run the dependency tree command: 'inspect dependencies for libpulse-binding'. 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-6gvc-4jvj-pwq4",
  "modified" : "2026-01-22T22:35:56Z",
  "published" : "2021-08-30T16:22:34Z",
  "withdrawn" : "2026-01-22T22:35:56Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Use after free in libpulse-binding",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-f56g-chqp-22m9. This link is maintained to preserve external references.\n\n## Original Description\nAn issue was discovered in the libpulse-binding crate before 2.5.0 for Rust. proplist::Iterator can cause a use-after-free.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "libpulse-binding"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.5"
      }, {
        "fixed" : "2.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-25001"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-6gvc-4jvj-pwq4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jnqnfe/pulse-binding-rust"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2018-0020.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-26T20:05:15Z",
    "nvd_published_at" : "2020-12-31T10:15:00Z"
  }
}