Fluid Attacks Database

Description

Rack Gem Subject to Denial of Service via Hash Collisions 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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
rubygems	rack	>=0 <1.1.3 \|\| >=1.2.0 <1.2.5 \|\| >=1.3.0 <1.3.6	1.1.3, 1.2.5, 1.3.6
maven	org.jruby:jruby-parent	>=0 <1.6.5.1	1.6.5.1
debian 11	ruby-rack	>=0 <1.4.0-1	1.4.0-1
debian 12	ruby-rack	>=0 <1.4.0-1	1.4.0-1
debian 13	ruby-rack	>=0 <1.4.0-1	1.4.0-1
debian 14	ruby-rack	>=0 <1.4.0-1	1.4.0-1

Aliases

1. CVE-2011-50362. NVD-2011-50363. OSV-2011-50364. OSV-DEBIAN-2011-50365. GCVE-2011-50366. SECURITY-TRACKER-CVE-2011-5036

References

1. https://gist.github.com/52bbc6b9cc19ce3308292. https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2011-5036.yml3. https://web.archive.org/web/20120201040317/http://jruby.org/2011/12/27/jruby-1-6-5-14. https://web.archive.org/web/20130213132312/http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html5. http://www.debian.org/security/2013/dsa-27836. http://www.kb.cert.org/vuls/id/9039347. http://www.nruns.com/_downloads/advisory28122011.pdf8. http://www.ocert.org/advisories/ocert-2011-003.html

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