CVE-2024-27101: Github.com/authzed/spicedb Integer Overflow Vulnerability

HIGH
Advisory Identifier: GHSA-h3m7-rqc4-7h9p
CVSS 7.3
CWE-190
Published
Advisory Summary

CVE-2024-27101 is a HIGH (CVSS 7.3) integer overflow vulnerability (CWE-190: Integer Overflow or Wraparound) affecting Github.com/authzed/spicedb libraries in the Go ecosystem. The issue involves integer overflow in chunking helper causes dispatching to miss elements or panic. Remediation is available by upgrading affected packages to version 1.29.2.

CVE-2024-27101 at a Glance

CVE Identifier CVE-2024-27101
GHSA Identifier GHSA-h3m7-rqc4-7h9p
Severity HIGH
CVSS v3.1 Base Score 7.3
CWE Classification CWE-190: Integer Overflow or Wraparound
Affected Product Github.com/authzed/spicedb
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.3

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

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

How to Fix CVE-2024-27101

To remediate this vulnerability, upgrade all affected Github.com/authzed/spicedb 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/authzed/spicedb fixed: 1.29.2
Upgrade github.com/authzed/spicedb to 1.29.2
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/authzed/spicedb

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-27101, inspect your project dependencies for Github.com/authzed/spicedb:

inspect dependencies for github.com/authzed/spicedb

Analyze the terminal output to locate any version of Github.com/authzed/spicedb in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.29.2), 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-190: Integer Overflow or Wraparound, where the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number. In Github.com/authzed/spicedb, 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

Any SpiceDB cluster with any schema where a resource being checked has more than 65535 relationships for the same resource and subject type is affected by this problem. The issue may also lead to a panic rendering the server unavailable The following API methods are affected: - [CheckPermission](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.PermissionsService.CheckPermission) - [BulkCheckPermission](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.ExperimentalService.BulkCheckPermission) - [LookupSubjects](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.PermissionsService.LookupSubjects) #### Impact Permission checks that are expected to be allowed are instead denied, and lookup subjects will return fewer subjects than expected. #### Workarounds There is no workaround other than making sure that the SpiceDB cluster does not have very wide relations, with the maximum value being the maximum value of an 16-bit unsigned integer #### Remediations - AuthZed Dedicated customers: No action. AuthZed has upgraded all deployments. - AuthZed Serverless customers: No Action. AuthZed has upgraded all deployments. - AuthZed Enterprise customers: Upgrade to [v1.29.2-hotfix-enterprise.v1.hotfix.v1](https://github.com/authzed-enterprise/src/pkgs/container/spicedb-enterprise/182719614?tag=v1.29.2-hotfix-enterprise.v1.hotfix.v1) - Open Source users: Upgrade to v1.29.2

CVE-2024-27101 Affected Github.com/authzed/spicedb Versions

1 component(s)
Fixed Versions:
1.29.2
Product / Package Ecosystem Affected Versions Fixed Version
github.com/authzed/spicedb
Go
< 1.29.2
1.29.2

References

Frequently Asked Questions

What is CVE-2024-27101?
CVE-2024-27101 is a security vulnerability in Github.com/authzed/spicedb involving Integer overflow in chunking helper causes dispatching to miss elements or panic under CWE-190: Integer Overflow or Wraparound.
Which Github.com/authzed/spicedb versions are affected?
Affected versions include releases prior to 1.29.2 across affected packages: github.com/authzed/spicedb.
What version fixes CVE-2024-27101?
Upgrading to 1.29.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/authzed/spicedb affected?
Yes, github.com/authzed/spicedb is affected in releases prior to 1.29.2. Upgrade your dependency to 1.29.2 or later.
What is the CVSS score of CVE-2024-27101?
CVE-2024-27101 has a CVSS v3.1 base score of 7.3 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:H.
What CWE is associated with CVE-2024-27101?
CVE-2024-27101 is classified under CWE-190: Integer Overflow or Wraparound (The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.).
How can I check Go dependencies for CVE-2024-27101?
Run the dependency tree command: 'inspect dependencies for github.com/authzed/spicedb'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h3m7-rqc4-7h9p",
  "modified" : "2024-03-01T23:32:10Z",
  "published" : "2024-03-01T23:32:10Z",
  "aliases" : [ "CVE-2024-27101" ],
  "summary" : "Integer overflow in chunking helper causes dispatching to miss elements or panic",
  "details" : "Any SpiceDB cluster with any schema where a resource being checked has more than 65535 relationships for the same resource and subject type is affected by this problem.\n\nThe issue may also lead to a panic rendering the server unavailable\n\nThe following API methods are affected:\n- [CheckPermission](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.PermissionsService.CheckPermission)\n- [BulkCheckPermission](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.ExperimentalService.BulkCheckPermission)\n- [LookupSubjects](https://buf.build/authzed/api/docs/main:authzed.api.v1#authzed.api.v1.PermissionsService.LookupSubjects)\n\n#### Impact\n\nPermission checks that are expected to be allowed are instead denied, and lookup subjects will return fewer subjects than expected.\n\n#### Workarounds\n\nThere is no workaround other than making sure that the SpiceDB cluster does not have very wide relations, with the maximum value being the maximum value of an 16-bit unsigned integer\n\n#### Remediations\n\n- AuthZed Dedicated customers: No action. AuthZed has upgraded all deployments.\n- AuthZed Serverless customers: No Action. AuthZed has upgraded all deployments.\n- AuthZed Enterprise customers: Upgrade to [v1.29.2-hotfix-enterprise.v1.hotfix.v1](https://github.com/authzed-enterprise/src/pkgs/container/spicedb-enterprise/182719614?tag=v1.29.2-hotfix-enterprise.v1.hotfix.v1)\n - Open Source users: Upgrade to v1.29.2",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/authzed/spicedb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.29.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/authzed/spicedb/security/advisories/GHSA-h3m7-rqc4-7h9p"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-27101"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/authzed/spicedb/commit/ef443c442b96909694390324a99849b0407007fe"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/authzed/spicedb"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-190" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-01T23:32:10Z",
    "nvd_published_at" : "2024-03-01T21:15:08Z"
  }
}