Products
Rack
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
Source
security-advisories@github.com
Tags
CVE-2024-39316 details
Last Modified : July 2, 2024, 5:44 p.m.
Description
Rack is a modular Ruby web server interface. Starting in version 3.1.0 and prior to version 3.1.5, 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). The fix for CVE-2024-26146 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. Users of versions on the 3.1 branch should upgrade to version 3.1.5 to receive the fix.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6.5 | 7 | 8 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| CWE-1333 | Inefficient Regular Expression Complexity | The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Base Score
6.5
Exploitability Score
2.8
Impact Score
3.6
Base Severity
MEDIUM
Vector String : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
| URL | Source |
|---|---|
| https://github.com/rack/rack/commit/412c980450ca729ee37f90a2661f166a9665e058 | security-advisories@github.com |
| https://github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8f | security-advisories@github.com |
| https://github.com/rack/rack/security/advisories/GHSA-cj83-2ww7-mvq7 | security-advisories@github.com |