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CVE-2012-5371

This CVE name corresponds to:

Entered Topic
2012-11-10 ruby -- Hash-flooding DoS vulnerability for ruby 1.9

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-2012-5371
Phase Assigned(20121010)

Description

Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly 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, as demonstrated by a universal multicollision attack against a variant of the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4815.

References

Source Reference
MISC http://2012.appsec-forum.ch/conferences/#c17
MISC http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
MISC http://www.ocert.org/advisories/ocert-2012-001.html
MISC https://www.131002.net/data/talks/appsec12_slides.pdf
CONFIRM http://www.ruby-lang.org/en/news/2012/11/09/ruby19-hashdos-cve-2012-5371/
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=875236
UBUNTU USN-1733-1
BID 56484
OSVDB 87280
SECTRACK 1027747
SECUNIA 51253
XF ruby-hash-function-dos(79993)