Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1wMjhoLWNjN3EtYzRmZ84AAvJj

css-what vulnerable to ReDoS due to use of insecure regular expression

The package css-what before 2.1.3 is vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.

Permalink: https://github.com/advisories/GHSA-p28h-cc7q-c4fg
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1wMjhoLWNjN3EtYzRmZ84AAvJj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 1 year ago
Updated: 5 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-p28h-cc7q-c4fg, CVE-2022-21222
References:

• https://nvd.nist.gov/vuln/detail/CVE-2022-21222
• https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488
• https://github.com/fb55/css-what/commit/dc510929790da6617e7aa93a616498b22f6a6b72
• https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js#23L12
• https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12
• https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html
• https://github.com/advisories/GHSA-p28h-cc7q-c4fg

Repository: https://github.com/fb55/css-what
Blast Radius: 48.6

Affected Packages