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CVE-2011-4838

This CVE name corresponds to:

Entered	Topic
2012-01-16	Multiple implementations -- DoS via hash algorithm collision

The following information is adapted from the Common Vulnerabilities and Exposures (CVE) project. CVE and the CVE logo are trademarks of The MITRE Corporation. CVE content is Copyright 2005, The MITRE Corporation.

CVE-2011-4838 at cve.mitre.org

Details

Type	Candidate
Name	CVE-2011-4838
Phase	Assigned(20111215)

Description

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

References

Source	Reference
BUGTRAQ	20111228 n.runs-SA-2011.004 - web programming languages and platforms - DoS through hash table
MISC	http://www.nruns.com/_downloads/advisory28122011.pdf
MISC	http://www.ocert.org/advisories/ocert-2011-003.html
CONFIRM	http://jruby.org/2011/12/27/jruby-1-6-5-1.html
GENTOO	GLSA-201207-06
REDHAT	RHSA-2012:1232
CERT-VN	VU#903934
SECUNIA	47407
SECUNIA	50084
XF	jruby-hash-dos(72019)