FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

CVE-2011-5036

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.

Details

Type Candidate
Name CVE-2011-5036
Phase Assigned(20111229)

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.

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 https://gist.github.com/52bbc6b9cc19ce330829
DEBIAN DSA-2783
CERT-VN VU#903934