CVE-2024-23820: Github.com/openfga/openfga Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-rxpw-85vw-fx87
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CVSS 5.3
CWE-770 CWE-401
Published
Advisory Summary

CVE-2024-23820 is a MODERATE (CVSS 5.3) denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Github.com/openfga/openfga libraries in the Go ecosystem. The issue involves openfga denial of service. Remediation is available by upgrading affected packages to version 1.4.3.

CVE-2024-23820 at a Glance

CVE Identifier CVE-2024-23820
GHSA Identifier GHSA-rxpw-85vw-fx87
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Github.com/openfga/openfga
Package Ecosystem Go
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:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
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-2024-23820

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

github.com/openfga/openfga fixed: 1.4.3 
Upgrade github.com/openfga/openfga to 1.4.3
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 github.com/openfga/openfga

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-23820, inspect your project dependencies for Github.com/openfga/openfga:

inspect dependencies for github.com/openfga/openfga

Analyze the terminal output to locate any version of Github.com/openfga/openfga in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.3), 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-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Github.com/openfga/openfga, 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

## Overview OpenFGA is vulnerable to a DoS attack. In some scenarios that depend on the model and tuples used, a call to ListObjects may not release memory properly. So when a sufficiently high number of those calls are executed, the OpenFGA server can create an "out of memory" error and terminate. ## Fix Upgrade to v1.4.3. This upgrade is backwards compatible.

CVE-2024-23820 Affected Github.com/openfga/openfga Versions

1 component(s)
Fixed Versions:
1.4.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/openfga/openfga
golang/github.com/openfga/openfga
Go
< 1.4.3
1.4.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openfga/openfga/security/advisories/GHSA-rxpw-85vw-fx87
NVD — CVE-2024-23820 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23820
Security Fix Commit FIX COMMIT
https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39
Github.com/openfga/openfga Source Repository REPOSITORY
https://github.com/openfga/openfga
Github.com/openfga/openfga Release RELEASE
https://github.com/openfga/openfga/releases/tag/v1.4.3

Frequently Asked Questions

What is CVE-2024-23820?
CVE-2024-23820 is a security vulnerability in Github.com/openfga/openfga involving OpenFGA denial of service under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Github.com/openfga/openfga versions are affected?
Affected versions include releases prior to 1.4.3 across affected packages: github.com/openfga/openfga.
What version fixes CVE-2024-23820?
Upgrading to 1.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/openfga/openfga affected?
Yes, github.com/openfga/openfga is affected in releases prior to 1.4.3. Upgrade your dependency to 1.4.3 or later.
What is the CVSS score of CVE-2024-23820?
CVE-2024-23820 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-23820?
CVE-2024-23820 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Go dependencies for CVE-2024-23820?
Run the dependency tree command: 'inspect dependencies for github.com/openfga/openfga'. 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-rxpw-85vw-fx87",
  "modified" : "2024-01-26T20:12:00Z",
  "published" : "2024-01-26T20:12:00Z",
  "aliases" : [ "CVE-2024-23820" ],
  "summary" : "OpenFGA denial of service",
  "details" : "## Overview\nOpenFGA is vulnerable to a DoS attack. In some scenarios that depend on the model and tuples used, a call to ListObjects may not  release memory properly. So when a sufficiently high number of those calls are executed, the OpenFGA server can create an \"out of memory\" error and terminate.\n\n## Fix\nUpgrade to v1.4.3. This upgrade is backwards compatible.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/openfga/openfga"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/security/advisories/GHSA-rxpw-85vw-fx87"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-23820"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openfga/openfga"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/releases/tag/v1.4.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-401", "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-26T20:12:00Z",
    "nvd_published_at" : "2024-01-26T17:15:13Z"
  }
}