CVE-2021-3777 (Other, published 2021-09-15T08:15Z)
Description: value: nodejs-tmpl is vulnerable to Inefficient Regular Expression Complexity
Severity: HIGH (CVSS v3 base score: 7.5)
Weakness: NVD-CWE-Other \u2014 Other
NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset.
Repository: https://github.com/daaku/nodejs-tmpl
Files changed:
.gitignore
.npmignore
.travis.yml
lib/tmpl.js
license
package.json
readme.md
test/tmpl-test.js
Commit message: fix potential dos in regex


Vulnerable code:

Fixed code:
/.tags
/lib-cov/
/node_modules/
/npm-debug.log
/package-lock.json
.gitignore
.npmignore
.tags
.travis.yml
lib-cov/
node_modules/
npm-debug.log
test/
language: node_js
node_js:
  - 0.6
var INTERPOLATE = /{([^{]+?)}/g

module.exports = function(str, data) {
  var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' +
    'with(obj||{}){__p.push(\'' +
    str.replace(/\\/g, '\\\\')
       .replace(/'/g, "\\'")
       .replace(INTERPOLATE, function(match, code) {
         return "'," + code.replace(/\\'/g, "'") + ",'"
       })
       .replace(/\r/g, '\\r')
       .replace(/\n/g, '\\n')
       .replace(/\t/g, '\\t')
       + "');}return __p.join('');"
  var func = new Function('obj', tmpl)
  return data ? func(data) : func
}
BSD License

Copyright (c) 2014, Naitik Shah. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither the name Naitik Shah nor the names of its contributors may be used to
   endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
{
  "name": "tmpl",
  "description": "JavaScript micro templates.",
  "version": "1.0.4",
  "license": "BSD-3-Clause",
  "homepage": "https://github.com/daaku/nodejs-tmpl",
  "author": "Naitik Shah <n@daaku.org>",
  "main": "lib/tmpl",
  "repository": {
    "type": "git",
    "url": "https://github.com/daaku/nodejs-tmpl"
  },
  "scripts": {
    "test": "NODE_PATH=./lib mocha --ui exports"
  },
  "devDependencies": {
    "mocha": "^9.1.1"
  }
}
tmpl [![Build Status](https://secure.travis-ci.org/nshah/nodejs-tmpl.png)](http://travis-ci.org/nshah/nodejs-tmpl)
====

Simple string formatting using `{}`.

```javascript
assert.equal(
  tmpl('the answer is {answer}', { answer: 42 }),
  'the answer is 42')
```
var tmpl = require('../lib/tmpl')
  , assert = require('assert')

exports['basic name substitution'] = function() {
  assert.equal(
    tmpl('the answer is {answer}', { answer: 42 }),
    'the answer is 42')
}