CVE-2019-18978
An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
| Software | From | Fixed in |
|---|---|---|
| rack-cors_project / rack-cors | - | 1.0.4 |
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 9.0 | 9.0.x |
| debian / debian_linux | 10.0 | 10.0.x |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
rack-cors
|
- | 1.0.4 |
- https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d
- https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4
- https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html
- https://usn.ubuntu.com/4571-1/
- https://www.debian.org/security/2021/dsa-4918
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