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    CVE-2011-4838

    JRuby before 1.6.5.1 computes hash values without 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.

    Published:Dec 28, 2011
    Last Modified:Apr 11, 2025
    EPS:Dec 30, 2011
    EPSS Score:0.07274
    CVSS Score:5

    Affected Products

    Vendor
    Jruby
    Product
    Jruby
    Vendor
    Redhat
    Product
    Jboss Soa Platform

    Exploits

    No exploit reference

    References

    http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
    http://jruby.org/2011/12/27/jruby-1-6-5-1.html
    http://rhn.redhat.com/errata/RHSA-2012-1232.html
    http://secunia.com/advisories/47407
    http://secunia.com/advisories/50084
    http://security.gentoo.org/glsa/glsa-201207-06.xml
    http://www.kb.cert.org/vuls/id/903934
    http://www.nruns.com/_downloads/advisory28122011.pdf
    http://www.ocert.org/advisories/ocert-2011-003.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/72019
    http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
    http://jruby.org/2011/12/27/jruby-1-6-5-1.html
    http://rhn.redhat.com/errata/RHSA-2012-1232.html
    http://secunia.com/advisories/47407
    http://secunia.com/advisories/50084
    http://security.gentoo.org/glsa/glsa-201207-06.xml
    http://www.kb.cert.org/vuls/id/903934
    http://www.nruns.com/_downloads/advisory28122011.pdf
    http://www.ocert.org/advisories/ocert-2011-003.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/72019

    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