CVE-2022-25872: Fast string search Out-of-bounds Read Vulnerability

MODERATE
Advisory Identifier: GHSA-hmqg-p8f8-3qrw
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CVSS 5.3
CWE-125
Published
Advisory Summary

CVE-2022-25872 is a MODERATE (CVSS 5.3) out-of-bounds read vulnerability (CWE-125: Out-of-bounds Read) affecting Fast string search libraries in the npm ecosystem. The issue involves out-of-bounds read in fast-string-search. Remediation is available in the latest vendor maintenance releases.

CVE-2022-25872 at a Glance

CVE Identifier CVE-2022-25872
GHSA Identifier GHSA-hmqg-p8f8-3qrw
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Fast string search
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/A:N).

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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2022-25872

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

fast-string-search fixed: Latest secure release 
npm install fast-string-search@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 fast-string-search

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2022-25872, inspect your project dependencies using npm:

npm ls fast-string-search

Analyze the terminal output to locate any version of Fast string search 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 fast-string-search 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In Fast string search, 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

All versions of package fast-string-search are vulnerable to Out-of-bounds Read due to incorrect memory freeing and length calculation for any non-string input as the source. This allows the attacker to read previously allocated memory.

CVE-2022-25872 Affected Fast string search Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
fast-string-search
npm/fast-string-search
npm
≤ 1.4.3

References

NVD — CVE-2022-25872 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-25872
Fast string search Source Repository REPOSITORY
https://github.com/magiclen/node-fast-string-search
Fast string search Source Repository REPOSITORY
https://github.com/magiclen/node-fast-string-search/blob/c8dd9fc966abc80b327f509e63360f59e0de9fb5/src/fast-string-search.c%23L192
snyk.io/vuln/snyk-js-fastst... WEB
https://snyk.io/vuln/SNYK-JS-FASTSTRINGSEARCH-2392368

Frequently Asked Questions

What is CVE-2022-25872?
CVE-2022-25872 is a security vulnerability in Fast string search involving Out-of-bounds Read in fast-string-search under CWE-125: Out-of-bounds Read.
Which Fast string search versions are affected?
Affected versions include releases prior to current release patches across affected packages: fast-string-search.
What version fixes CVE-2022-25872?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is fast-string-search affected?
Yes, fast-string-search is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2022-25872?
CVE-2022-25872 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2022-25872?
CVE-2022-25872 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check npm dependencies for CVE-2022-25872?
Run the dependency tree command: 'npm ls fast-string-search'. 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-hmqg-p8f8-3qrw",
  "modified" : "2022-06-20T22:28:11Z",
  "published" : "2022-06-18T00:00:19Z",
  "aliases" : [ "CVE-2022-25872" ],
  "summary" : "Out-of-bounds Read in fast-string-search",
  "details" : "All versions of package fast-string-search are vulnerable to Out-of-bounds Read due to incorrect memory freeing and length calculation for any non-string input as the source. This allows the attacker to read previously allocated memory.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "fast-string-search"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-25872"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/magiclen/node-fast-string-search"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/magiclen/node-fast-string-search/blob/c8dd9fc966abc80b327f509e63360f59e0de9fb5/src/fast-string-search.c%23L192"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-FASTSTRINGSEARCH-2392368"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-20T22:28:11Z",
    "nvd_published_at" : "2022-06-17T20:15:00Z"
  }
}