CVE-2024-39316: Rack ReDoS Vulnerability in HTTP Accept Headers Parsing
(updated )
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the Rack::Request::Helpers module when parsing HTTP Accept headers. This vulnerability can be exploited by an attacker sending specially crafted Accept-Encoding or Accept-Language headers, causing the server to spend excessive time processing the request and leading to a Denial of Service (DoS).
References
- advisory.dw1.io/61
- github.com/advisories/GHSA-cj83-2ww7-mvq7
- github.com/rack/rack
- github.com/rack/rack/commit/412c980450ca729ee37f90a2661f166a9665e058
- github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8f
- github.com/rack/rack/security/advisories/GHSA-cj83-2ww7-mvq7
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2024-39316.yml
- nvd.nist.gov/vuln/detail/CVE-2024-39316
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