Browserify is a powerful tool that allows developers to use Node.js-style require() statements in the browser, enabling code reuse and modularity in front-end development. Version 2.6.1 is a minor update from version 2.6.0, offering subtle yet important improvements. While both versions share the same core dependencies, including through for stream transformations, duplexer for creating duplex streams, optimist for argument parsing, and module-deps for dependency analysis, the key distinction lies in the introduction of concat-stream as a new dependency in version 2.6.1. This addition likely addresses specific issues or enhances browserify's stream handling capabilities, potentially improving performance or stability when dealing with large files.
Developers upgrading to 2.6.1 should examine how the introduction of concat-stream might affect their existing build processes, especially if they're already handling streams directly. The rest of the dependency tree and essential functionalities remain consistent, minimizing potential breaking changes. Both versions benefit from a solid set of development dependencies that improve testing and developer experience, such as tap for test output and coffee-script because it allows to write tests in Coffeescript.
Browserify simplifies front-end development by letting you package Node.js modules and their dependencies into a single file, making it perfect for creating modern web applications. With a small upgrade it improves the core functionality of file management.
All the vulnerabilities related to the version 2.6.1 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.