GHSA-cj83-2ww7-mvq7

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Source
https://github.com/advisories/GHSA-cj83-2ww7-mvq7
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-cj83-2ww7-mvq7/GHSA-cj83-2ww7-mvq7.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-cj83-2ww7-mvq7
Aliases
Published
2024-07-03T17:03:45Z
Modified
2024-07-09T01:27:53.424768Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Rack ReDoS Vulnerability in HTTP Accept Headers Parsing
Details

Summary

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).

Details

The fix for https://github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8f was not applied to the main branch and thus while the issue was fixed for the Rack v3.0 release series, it was not fixed in the v3.1 release series until v3.1.5.

References

Affected packages

RubyGems / rack

Package

Name
rack
Purl
pkg:gem/rack

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.1.0
Fixed
3.1.5

Affected versions

3.*

3.1.0
3.1.1
3.1.2
3.1.3
3.1.4