GHSA-7fh5-64p2-3v2j
PostCSS line return parsing error
At a glance
- Published
- Updated
- CVE
- CVE-2023-44270
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be `\r` discrepancies, as demonstrated by `@font-face{ font:(\r/*);}` in a rule. This vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being originally included in a comment.
Affected packages
| Package | Versions |
|---|---|
| npm · postcss | introduced 0, fixed 8.4.31 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-44270 ADVISORY
- https://github.com/github/advisory-database/issues/2820 WEB
- https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5 WEB
- https://github.com/postcss/postcss PACKAGE
- https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25 WEB
- https://github.com/postcss/postcss/releases/tag/8.4.31 WEB
- https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |