CVE-2011-4838

NameCVE-2011-4838
DescriptionJRuby 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-209-1
NVD severityhigh (attack range: remote)
Debian Bugs686867

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
jruby (PTS)wheezy1.5.6-5fixed
jessie1.5.6-9fixed
stretch1.7.26-1fixed
buster, sid9.1.13.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
jrubysource(unstable)1.5.6-4low686867
jrubysourcesqueeze1.5.1-1+deb6u1highDLA-209-1

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