CVE-2012-5370

jruby: Murmur hash function collisions (oCERT-2012-001)

Published Nov 28, 2012 CVSS 2.0 · 5.0 Medium EPSS 2.2% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-209-1 jruby security update
EUVD EUVD EUVD-2022-3805 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.
Github GHSA Github GHSA GHSA-fmmq-j7pq-f85c JRuby denial of service via Hash Collision
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 9:05 PM
Reserved
Oct 10, 2012, 12:00 AM
Status
Modified
Published
Nov 28, 2012, 1:03 PM
Modified
Jun 16, 2026, 11:46 PM
Severity
Moderate
Public date
Nov 23, 2012, 12:00 AM