5 Medium
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
61.1%
JRuby 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 the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4838.
CPE | Name | Operator | Version |
---|---|---|---|
jruby:jruby | jruby | eq | - |
2012.appsec-forum.ch/conferences/#c17
asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
rhn.redhat.com/errata/RHSA-2013-0533.html
www.ocert.org/advisories/ocert-2012-001.html
bugzilla.redhat.com/show_bug.cgi?id=880671
www.131002.net/data/talks/appsec12_slides.pdf