Original 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.
Affected software
- Ruby = 2.0= 1.9.2= 1.9= 1.9.1≤ 1.9.3= 1.9.3 exact match
Details
- Published
- 2012-11-28
- Last modified
- 2024-08-07
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
References
- cve.org/CVE-2012-5371
- nvd.nist.gov/vuln/detail/CVE-2012-5371
- asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_f...
- securitytracker.com/id?1027747
- www.osvdb.org/87280
- www.securityfocus.com/bid/56484
- www.131002.net/data/talks/appsec12_slides.pdf
- www.ruby-lang.org/en/news/2012/11/09/ruby19-hashdos-cve-2012-5371/
- 2012.appsec-forum.ch/conferences/#c17
- bugzilla.redhat.com/show_bug.cgi?id=875236
- secunia.com/advisories/51253
- www.ocert.org/advisories/ocert-2012-001.html
- www.ubuntu.com/usn/USN-1733-1
- exchange.xforce.ibmcloud.com/vulnerabilities/79993
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