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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf ↗
- http://securitytracker.com/id?1027747 ↗
- http://www.osvdb.org/87280 ↗
- http://www.securityfocus.com/bid/56484 ↗
- https://www.131002.net/data/talks/appsec12_slides.pdf ↗
- http://www.ruby-lang.org/en/news/2012/11/09/ruby19-hashdos-cve-2012-5371/ ↗
- http://2012.appsec-forum.ch/conferences/#c17 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=875236 ↗
- http://secunia.com/advisories/51253 ↗
- http://www.ocert.org/advisories/ocert-2012-001.html ↗
- http://www.ubuntu.com/usn/USN-1733-1 ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79993 ↗