Vulnerabilities in pkg:npm/bufver-xor

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Advisory Summary

GHSA-cr4x-w2v7-4mmf is a CRITICAL (CVSS 9.8) malicious package vulnerability (CWE-506: Embedded Malicious Code) affecting Bufver xor libraries in the npm ecosystem. The issue involves malicious package in bufver-xor. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/bufver-xor

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/bufver-xor. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-cr4x-w2v7-4mmf - CRITICAL Malicious Package in bufver-xor

GHSA-cr4x-w2v7-4mmf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-cr4x-w2v7-4mmf
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-506: Embedded Malicious Code
Affected Product Bufver xor
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix GHSA-cr4x-w2v7-4mmf

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

bufver-xor fixed: Latest secure release 
npm install bufver-xor@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls bufver-xor

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-cr4x-w2v7-4mmf, inspect your project dependencies using npm:

npm ls bufver-xor

Analyze the terminal output to locate any version of Bufver xor in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls bufver-xor command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-506: Embedded Malicious Code, where the product contains code that appears to be malicious in nature. In Bufver xor, 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

Version 2.0.2 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user. ## Recommendation Remove the package from your environment. Ensure no Ethereum funds were compromised.

GHSA-cr4x-w2v7-4mmf Affected Bufver xor Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
bufver-xor
npm/bufver-xor
npm
≥ 0.0.0

References

www.npmjs.com/advisories/1265 WEB
https://www.npmjs.com/advisories/1265

Frequently Asked Questions

What is GHSA-cr4x-w2v7-4mmf?
GHSA-cr4x-w2v7-4mmf is a security vulnerability in Bufver xor involving Malicious Package in bufver-xor under CWE-506: Embedded Malicious Code.
Which Bufver xor versions are affected?
Affected versions include releases prior to current release patches across affected packages: bufver-xor.
What version fixes GHSA-cr4x-w2v7-4mmf?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is bufver-xor affected?
Yes, bufver-xor is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-cr4x-w2v7-4mmf?
GHSA-cr4x-w2v7-4mmf has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with GHSA-cr4x-w2v7-4mmf?
GHSA-cr4x-w2v7-4mmf is classified under CWE-506: Embedded Malicious Code (The product contains code that appears to be malicious in nature.).
How can I check npm dependencies for GHSA-cr4x-w2v7-4mmf?
Run the dependency tree command: 'npm ls bufver-xor'. 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-cr4x-w2v7-4mmf",
  "modified" : "2021-09-29T21:36:13Z",
  "published" : "2020-09-03T22:26:13Z",
  "aliases" : [ ],
  "summary" : "Malicious Package in bufver-xor",
  "details" : "Version 2.0.2 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.\n\n\n## Recommendation\n\nRemove the package from your environment. Ensure no Ethereum funds were compromised.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "bufver-xor"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1265"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-506" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:53:00Z",
    "nvd_published_at" : null
  }
}