CVE-2020-25724: Resteasy bom Unsynchronized Access To Shared Data Vulnerability

MODERATE
Advisory Identifier: GHSA-9699-gm7f-cmjv
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CVSS 4.3
CWE-567
Published
Advisory Summary

CVE-2020-25724 is a MODERATE (CVSS 4.3) unsynchronized access to shared data vulnerability (CWE-567: Unsynchronized Access to Shared Data in a Multithreaded Context) affecting Resteasy bom libraries in the Maven ecosystem. The issue involves unsynchronized access to shared data in a multithreaded context in resteasy. Remediation is available by upgrading affected packages to version 2.0-beta-2.

CVE-2020-25724 at a Glance

CVE Identifier CVE-2020-25724
GHSA Identifier GHSA-9699-gm7f-cmjv
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-567: Unsynchronized Access to Shared Data in a Multithreaded Context
Affected Product Resteasy bom
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2020-25724

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

org.jboss.resteasy:resteasy-bom fixed: 2.0-beta-2 
<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-bom</artifactId>
    <version>2.0-beta-2</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=org.jboss.resteasy

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-25724, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jboss.resteasy

Analyze the terminal output to locate any version of Resteasy bom in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0-beta-2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jboss.resteasy 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-567: Unsynchronized Access to Shared Data in a Multithreaded Context, where the product does not properly synchronize shared data, such as static variables across threads, which can lead to undefined behavior and unpredictable data changes. In Resteasy bom, 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

A flaw was found in RESTEasy, where an incorrect response to an HTTP request is provided. This flaw allows an attacker to gain access to privileged information. The highest threat from this vulnerability is to confidentiality and integrity. Versions before resteasy 2.0.0.Alpha3 are affected.

CVE-2020-25724 Affected Resteasy bom Versions

1 component(s)
Fixed Versions:
2.0-beta-2
Product / Package Ecosystem Affected Versions Fixed Version
org.jboss.resteasy:resteasy-bom
maven/org.jboss.resteasy/resteasy-bom
Maven
< 2.0-beta-2
2.0-beta-2

References

NVD — CVE-2020-25724 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25724
Resteasy bom Security Information SECURITY
https://access.redhat.com/security/cve/cve-2020-25724
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1899354
Resteasy bom Security Information SECURITY
https://security.netapp.com/advisory/ntap-20210702-0003

Frequently Asked Questions

What is CVE-2020-25724?
CVE-2020-25724 is a security vulnerability in Resteasy bom involving Unsynchronized Access to Shared Data in a Multithreaded Context in RESTEasy under CWE-567: Unsynchronized Access to Shared Data in a Multithreaded Context.
Which Resteasy bom versions are affected?
Affected versions include releases prior to 2.0-beta-2 across affected packages: org.jboss.resteasy:resteasy-bom.
What version fixes CVE-2020-25724?
Upgrading to 2.0-beta-2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is resteasy-bom affected?
Yes, org.jboss.resteasy:resteasy-bom is affected in releases prior to 2.0-beta-2. Upgrade your dependency to 2.0-beta-2 or later.
What is the CVSS score of CVE-2020-25724?
CVE-2020-25724 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2020-25724?
CVE-2020-25724 is classified under CWE-567: Unsynchronized Access to Shared Data in a Multithreaded Context (The product does not properly synchronize shared data, such as static variables across threads, which can lead to undefined behavior and unpredictable data changes.).
How can I check Maven dependencies for CVE-2020-25724?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jboss.resteasy'. 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-9699-gm7f-cmjv",
  "modified" : "2021-06-04T18:57:52Z",
  "published" : "2021-06-08T22:29:46Z",
  "aliases" : [ "CVE-2020-25724" ],
  "summary" : "Unsynchronized Access to Shared Data in a Multithreaded Context in RESTEasy",
  "details" : "A flaw was found in RESTEasy, where an incorrect response to an HTTP request is provided. This flaw allows an attacker to gain access to privileged information. The highest threat from this vulnerability is to confidentiality and integrity. Versions before resteasy 2.0.0.Alpha3 are affected.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jboss.resteasy:resteasy-bom"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0-beta-2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.0-beta-1"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-25724"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/cve-2020-25724"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1899354"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20210702-0003"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-567" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-06-01T20:34:48Z",
    "nvd_published_at" : "2021-05-26T21:15:00Z"
  }
}