Browserify version 2.7.4 represents a minor update over its predecessor, 2.7.3, within the popular JavaScript module bundler. Both versions maintain the core functionality of enabling Node.js-style require() statements within browser-based JavaScript, streamlining the development of complex web applications. Analyzing the metadata, the dependency tree remains consistent between the two versions. This means developers upgrading from 2.7.3 to 2.7.4 are unlikely to experience breaking changes within their existing workflows due to alterations in Browserify's core dependencies like through, duplexer, optimist, JSONStream, module-deps, shell-quote, browser-pack, syntax-error, concat-stream, browser-resolve or insert-module-globals.
The key difference lies in the release date. Version 2.7.4 was published on March 26, 2013, while 2.7.3 came out on March 24, 2013. This suggests that version 2.7.4 likely includes bug fixes or minor improvements implemented shortly after the release of 2.7.3. While specific details of these changes aren't explicitly detailed in the provided data, developers are encouraged to consult the changelog or commit history within the linked GitHub repository to pinpoint precisely what was addressed. For those seeking stability and incremental improvements, upgrading to 2.7.4 is advisable to benefit from the latest refinements.
All the vulnerabilities related to the version 2.7.4 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.
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.