CVE-2021-23424

Public Exploit

Regular Expression Denial of Service (ReDoS)

Description

This affects all versions of package ansi-html. If an attacker provides a malicious string, it will get stuck processing the input for an extremely long time.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.15%

Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io

Affected: n/a ansi-html

References

Link	Tags
https://github.com/Tjatse/ansi-html/issues/19	third party advisory issue tracking exploit
https://snyk.io/vuln/SNYK-JS-ANSIHTML-1296849	third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1567198	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-23424?: CVE-2021-23424 has been scored as a high severity vulnerability.
How to fix CVE-2021-23424?: To fix CVE-2021-23424, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23424 being actively exploited in the wild?: It is possible that CVE-2021-23424 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23424?: CVE-2021-23424 affects n/a ansi-html.

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