medium5.0
CVE-2011-5036
Rack Gem Subject to Denial of Service via Hash Collisions
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | rack | < 1.1.3 | 1.1.3 |
| maven | org.jruby:jruby-parent | < 1.6.5.1 | 1.6.5.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Rack Project | Rack | through 1.1.0 Versions 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://www.debian.org/security/2013/dsa-2783
- http://www.kb.cert.org/vuls/id/903934
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- https://gist.github.com/52bbc6b9cc19ce330829
- https://github.com/advisories/GHSA-v6j3-7jrw-hq2p
- https://nvd.nist.gov/vuln/detail/CVE-2011-5036
- https://web.archive.org/web/20120201040317/http://jruby.org/2011/12/27/jruby-1-6-5-1
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2011-5036.yml
- https://web.archive.org/web/20130213132312/http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html