Browserify is a powerful tool that allows developers to use Node.js-style modules in the browser by bundling up dependencies. Comparing versions 2.5.0 and 2.5.1, the core functionality and dependencies appear identical, suggesting that the update represents a minor patch. Both versions share the same fundamental dependencies crucial for Browserify's operation, including through for stream processing, duplexer for duplex streams, inherits for inheritance, optimist for argument parsing, JSONStream for handling JSON streams, module-deps for module dependency analysis, shell-quote for shell quoting, browser-pack for packing modules, syntax-error for syntax checking, browser-resolve to find modules in the style of Node, and insert-module-globals to insert Node.js globals. The developer dependencies, such as seq for control flow, tap for testing, dnode for RPC, mkdirp for directory creation, backbone for front-end support and coffee-script for CoffeeScript support, remain consistent, indicating no significant changes in the development or testing process between the releases. The key difference lies in the release date and potentially very minor bug fixes or performance enhancements addressed in version 2.5.1, which might not be explicitly documented but could improve overall stability. For users, upgrading from 2.5.0 to 2.5.1 should present a seamless transition, making it worthwhile to adopt the latest patch version for enhanced reliability.
All the vulnerabilities related to the version 2.5.1 of the package
Potential Command Injection in shell-quote
Affected versions of shell-quote do not properly escape command line arguments, which may result in command injection if the library is used to escape user input destined for use as command line arguments.
The following characters are not escaped properly: >,;,{,}
Bash has a neat but not well known feature known as "Bash Brace Expansion", wherein a sub-command can be executed without spaces by running it between a set of {} and using the , instead of to seperate arguments. Because of this, full command injection is possible even though it was initially thought to be impossible.
const quote = require('shell-quote').quote;
console.log(quote(['a;{echo,test,123,234}']));
// Actual "a;{echo,test,123,234}"
// Expected "a\;\{echo,test,123,234\}"
// Functional Equivalent "a; echo 'test' '123' '1234'"
Update to version 1.6.1 or later.
Improper Neutralization of Special Elements used in a Command in Shell-quote
The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with exec(), an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is [A-z] instead of the correct [A-Za-z]. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.
Incorrect Handling of Non-Boolean Comparisons During Minification in uglify-js
Versions of uglify-js prior to 2.4.24 are affected by a vulnerability which may cause crafted JavaScript to have altered functionality after minification.
Upgrade UglifyJS to version >= 2.4.24.
Regular Expression Denial of Service in uglify-js
Versions of uglify-js prior to 2.6.0 are affected by a regular expression denial of service vulnerability when malicious inputs are passed into the parse() method.
var u = require('uglify-js');
var genstr = function (len, chr) {
var result = "";
for (i=0; i<=len; i++) {
result = result + chr;
}
return result;
}
u.parse("var a = " + genstr(process.argv[2], "1") + ".1ee7;");
$ time node test.js 10000
real 0m1.091s
user 0m1.047s
sys 0m0.039s
$ time node test.js 80000
real 0m6.486s
user 0m6.229s
sys 0m0.094s
Update to version 2.6.0 or later.
Potential for Script Injection in syntax-error
Versions of syntax-error prior to 1.1.1 are affected by a cross-site scripting vulnerability which may allow a malicious file to execute code when browserified.
Update to version 1.1.1 or later.