GHSA-7r3r-gq8p-v9jj
Improper handling of CSS at-rules in lettersanitizer
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | lettersanitizer | < 1.0.2 | 1.0.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`.
This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk.
### Patches
The problem has been patched in version 1.0.2.
### Workarounds
There is no workaround besides upgrading.
### References
The issue was originally reported in the react-letter repository: https://github.com/mat-sz/react-letter/issues/17
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [lettersanitizer](https://github.com/mat-sz/lettersanitizer/issues)
* Email me at [[email protected]](mailto:[email protected])
References
External links from the advisory. They lead to third-party sites.
- https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj
- https://nvd.nist.gov/vuln/detail/CVE-2022-31103
- https://github.com/mat-sz/react-letter/issues/17
- https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f
- https://github.com/mat-sz/lettersanitizer