CVE-2011-5036
Summary
| CVE | CVE-2011-5036 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2011-12-30 01:55:01 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | Rack before 1.1.3, 1.2.x before 1.2.5, and 1.3.x before 1.3.6 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Rack Project | Rack | 1.2.0 | All | All | All |
| Application | Rack Project | Rack | 1.2.1 | All | All | All |
| Application | Rack Project | Rack | 1.2.2 | All | All | All |
| Application | Rack Project | Rack | 1.2.3 | All | All | All |
| Application | Rack Project | Rack | 1.2.4 | All | All | All |
| Application | Rack Project | Rack | 1.3.0 | All | All | All |
| Application | Rack Project | Rack | 1.3.1 | All | All | All |
| Application | Rack Project | Rack | 1.3.2 | All | All | All |
| Application | Rack Project | Rack | 1.3.3 | All | All | All |
| Application | Rack Project | Rack | 1.3.4 | All | All | All |
| Application | Rack Project | Rack | 1.3.5 | All | All | All |
| Application | Rack Project | Rack | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oCERT.org - oCERT Advisories | af854a3a-2127-422b-91ae-364da2661108 | www.ocert.org | |
| VU#903934 - Hash table implementations vulnerable to algorithmic complexity attacks | af854a3a-2127-422b-91ae-364da2661108 | www.kb.cert.org | US Government Resource |
| Debian -- Security Information -- DSA-2783-1 librack-ruby | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| NEOHAPSIS - Peace of Mind Through Integrity and Insight | af854a3a-2127-422b-91ae-364da2661108 | archives.neohapsis.com | |
| Best 7 Best Internet Security Software in 2019 | af854a3a-2127-422b-91ae-364da2661108 | www.nruns.com | |
| gist:52bbc6b9cc19ce330829 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | gist.github.com | Exploit |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.