GHSA-pfjq-935c-4895: V9 Data Races Vulnerability

HIGH
Share
CVSS 8.1
CWE-362
Published
Advisory Summary

GHSA-pfjq-935c-4895 is a HIGH (CVSS 8.1) data races vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting V9 libraries in the crates.io ecosystem. The issue involves data races in v9. Remediation is available by upgrading affected packages to version 0.1.43.

GHSA-pfjq-935c-4895 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-pfjq-935c-4895
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product V9
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

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

How to Fix GHSA-pfjq-935c-4895

To remediate this vulnerability, upgrade all affected V9 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

v9 fixed: 0.1.43 
Upgrade v9 to 0.1.43
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 v9

How to Check if You Are Affected

To determine whether your application is affected by GHSA-pfjq-935c-4895, inspect your project dependencies for V9:

inspect dependencies for v9

Analyze the terminal output to locate any version of V9 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.43), 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. In V9, 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 unconditionally implement `Sync` for `SyncRef<T>`. This definition allows data races if `&T` is accessible through `&SyncRef`. `SyncRef<T>` derives `Clone` and `Debug`, and the default implementations of those traits access `&T` by invoking `T::clone()` & `T::fmt()`. It is possible to create data races & undefined behavior by concurrently invoking `SyncRef<T>::clone()` or `SyncRef<T>::fmt()` from multiple threads with `T: !Sync`.

GHSA-pfjq-935c-4895 Affected V9 Versions

1 component(s)
Fixed Versions:
0.1.43
Product / Package Ecosystem Affected Versions Fixed Version
v9
 crates.io
< 0.1.43
0.1.43

References

V9 Source Repository REPOSITORY
https://github.com/purpleposeidon/v9/issues/1
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2020-0127.html

Frequently Asked Questions

What is GHSA-pfjq-935c-4895?
GHSA-pfjq-935c-4895 is a security vulnerability in V9 involving Data races in v9 under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which V9 versions are affected?
Affected versions include releases prior to 0.1.43 across affected packages: v9.
What version fixes GHSA-pfjq-935c-4895?
Upgrading to 0.1.43 (or the latest patched release for your respective branch) resolves the vulnerability.
Is v9 affected?
Yes, v9 is affected in releases prior to 0.1.43. Upgrade your dependency to 0.1.43 or later.
What is the CVSS score of GHSA-pfjq-935c-4895?
GHSA-pfjq-935c-4895 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with GHSA-pfjq-935c-4895?
GHSA-pfjq-935c-4895 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check crates.io dependencies for GHSA-pfjq-935c-4895?
Run the dependency tree command: 'inspect dependencies for v9'. 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-pfjq-935c-4895",
  "modified" : "2023-06-13T22:27:40Z",
  "published" : "2021-08-25T21:00:37Z",
  "aliases" : [ ],
  "summary" : "Data races in v9",
  "details" : "Affected versions of this crate unconditionally implement `Sync` for `SyncRef<T>`. This definition allows data races if `&T` is accessible through `&SyncRef`.\n\n`SyncRef<T>` derives `Clone` and `Debug`, and the default implementations of those traits access `&T` by invoking `T::clone()` & `T::fmt()`. It is possible to create data races & undefined behavior by concurrently invoking `SyncRef<T>::clone()` or `SyncRef<T>::fmt()` from multiple threads with `T: !Sync`.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "v9"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.43"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/purpleposeidon/v9/issues/1"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2020-0127.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-05T21:37:57Z",
    "nvd_published_at" : null
  }
}