Vulnerabilities in pkg:maven/com.upokecenter/cbor

PACKAGE
Advisory Identifier: GHSA-fj2w-wfgv-mwq6
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Advisory Summary

CVE-2024-23684 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-407: Inefficient Algorithmic Complexity) affecting Cbor libraries in the Maven ecosystem. The issue involves denial of service in cbor library. Remediation is available by upgrading affected packages to version 4.5.1.

3 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/com.upokecenter/cbor

3 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/com.upokecenter/cbor. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-fj2w-wfgv-mwq6 CVE-2024-23684 HIGH Denial of service in CBOR library
GHSA-hfj8-63c8-rmfw - HIGH Duplicate Advisory: Inefficient Algorithmic Complexity in com.upokecenter:cbor
GHSA-mm44-wc5p-wqhq - HIGH Denial of service due to reference expansion in versions earlier than 4.0

CVE-2024-23684 at a Glance

CVE Identifier CVE-2024-23684
GHSA Identifier GHSA-fj2w-wfgv-mwq6
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-407: Inefficient Algorithmic Complexity
Affected Product Cbor
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-23684

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

com.upokecenter:cbor fixed: 4.5.1 
<dependency>
    <groupId>com.upokecenter</groupId>
    <artifactId>cbor</artifactId>
    <version>4.5.1</version>
</dependency>
Verify Direct and Transitive Dependencies

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

mvn dependency:tree -Dincludes=com.upokecenter

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2024-23684, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.upokecenter

Analyze the terminal output to locate any version of Cbor in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.upokecenter command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-407: Inefficient Algorithmic Complexity, where an algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached. In Cbor, 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

### Impact Due to this library's use of an inefficient algorithm, it is vulnerable to a denial of service attack when a maliciously crafted input is passed to `DecodeFromBytes` or other CBOR decoding mechanisms in this library. Affected versions _include_ versions 4.0.0 through 4.5.0. This vulnerability was privately reported to me. ### Patches This issue has been fixed in version 4.5.1. Users should use the latest version of this library. (The latest version is not necessarily 4.5.1. Check the README for [this library's repository](https://github.com/peteroupc/CBOR-Java) to see the latest version's version number.) ### Workarounds Again, users should use the latest version of this library. In the meantime, note that the inputs affected by this issue are all CBOR maps or contain CBOR maps. An input that decodes to a single CBOR object is not capable of containing a CBOR map if&mdash; - it begins with a byte other than 0x80 through 0xDF, or - it does not contain a byte in the range 0xa0 through 0xBF. Such an input is not affected by this vulnerability and an application can choose to perform this check before passing it to a CBOR decoding mechanism. ### For more information If you have any questions or comments about this advisory: * Open an issue in [the CBOR repository](https://github.com/peteroupc/CBOR-Java).

CVE-2024-23684 Affected Cbor Versions

1 component(s)
Fixed Versions:
4.5.1
Product / Package Ecosystem Affected Versions Fixed Version
com.upokecenter:cbor
maven/com.upokecenter/cbor
Maven
≥ 4.0.0
< 4.5.1
4.5.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/peteroupc/CBOR-Java/security/advisories/GHSA-fj2w-wfgv-mwq6
NVD — CVE-2024-23684 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23684
Cbor Source Repository REPOSITORY
https://github.com/peteroupc/CBOR-Java
vulncheck.com/advisories/vc-advis... WEB
https://vulncheck.com/advisories/vc-advisory-GHSA-fj2w-wfgv-mwq6

Frequently Asked Questions

What is CVE-2024-23684?
CVE-2024-23684 is a security vulnerability in Cbor involving Denial of service in CBOR library under CWE-407: Inefficient Algorithmic Complexity.
Which Cbor versions are affected?
Affected versions include releases prior to 4.5.1 across affected packages: com.upokecenter:cbor.
What version fixes CVE-2024-23684?
Upgrading to 4.5.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is cbor affected?
Yes, com.upokecenter:cbor is affected in releases prior to 4.5.1. Upgrade your dependency to 4.5.1 or later.
What is the CVSS score of CVE-2024-23684?
CVE-2024-23684 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-23684?
CVE-2024-23684 is classified under CWE-407: Inefficient Algorithmic Complexity (An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.).
How can I check Maven dependencies for CVE-2024-23684?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.upokecenter'. 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-fj2w-wfgv-mwq6",
  "modified" : "2026-01-22T20:53:20Z",
  "published" : "2022-01-21T23:21:48Z",
  "aliases" : [ "CVE-2024-23684" ],
  "summary" : "Denial of service in CBOR library",
  "details" : "### Impact\nDue to this library's use of an inefficient algorithm, it is vulnerable to a denial of service attack when a maliciously crafted input is passed to `DecodeFromBytes` or other CBOR decoding mechanisms in this library.  \n\nAffected versions _include_ versions 4.0.0 through 4.5.0.\n\nThis vulnerability was privately reported to me.\n\n### Patches\nThis issue has been fixed in version 4.5.1.  Users should use the latest version of this library.  (The latest version is not necessarily 4.5.1.  Check the README for [this library's repository](https://github.com/peteroupc/CBOR-Java) to see the latest version's version number.)\n\n### Workarounds\n\nAgain, users should use the latest version of this library.\n\nIn the meantime, note that the inputs affected by this issue are all CBOR maps or contain CBOR maps.  An input that decodes to a single CBOR object is not capable of containing a CBOR map if&mdash;\n\n- it begins with a byte other than 0x80 through 0xDF, or\n- it does not contain a byte in the range 0xa0 through 0xBF.\n\nSuch an input is not affected by this vulnerability and an application can choose to perform this check before passing it to a CBOR decoding mechanism.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [the CBOR repository](https://github.com/peteroupc/CBOR-Java).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.upokecenter:cbor"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.5.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/peteroupc/CBOR-Java/security/advisories/GHSA-fj2w-wfgv-mwq6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-23684"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/peteroupc/CBOR-Java"
  }, {
    "type" : "WEB",
    "url" : "https://vulncheck.com/advisories/vc-advisory-GHSA-fj2w-wfgv-mwq6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-407" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-19T16:15:17Z",
    "nvd_published_at" : null
  }
}