CVE-2012-5370
JRuby denial of service via Hash Collision
EPSS 0.60%
Description
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.
How to fix CVE-2012-5370
To remediate CVE-2012-5370, upgrade the affected package to a fixed version below.
- Debian/jruby—upgrade to 1.5.6-5 or later
- —upgrade to 1.7.1 or later
Is CVE-2012-5370 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.5.6-5
- from 0, < 1.7.1