GHSA-fmmq-j7pq-f85c

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    GHSA-fmmq-j7pq-f85c

    Published: 17 May 2022Last Modified: 10 Sept 2026
    Aliases:
    CVE-2012-5370

    Summary: JRuby denial of service via Hash Collision

    Details: 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2012-5370, https://github.com/jruby/jruby/commit/5e4aab28b26fd127112b76fabfac9a33b64caf77, https://bugzilla.redhat.com/show_bug.cgi?id=880671, http://jruby.org/2012/12/03/jruby-1-7-1, http://rhn.redhat.com/errata/RHSA-2013-0533.html

    Affected packages

    Package

    Name: org.jruby:jruby-parent

    Purl: pkg:maven/org.jruby/jruby-parent

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.7.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-fmmq-j7pq-f85c | CVE-DB