CVE-2012-5370

NameCVE-2012-5370
DescriptionJRuby 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-209-1
NVD severitymedium (attack range: remote)
Debian Bugs694694

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
jruby (PTS)jessie1.5.6-9fixed
jessie (security)1.5.6-9+deb8u1fixed
stretch (security), stretch1.7.26-1+deb9u1fixed
bullseye, sid, buster9.1.17.0-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
jrubysource(unstable)1.5.6-5medium694694
jrubysourcesqueeze1.5.1-1+deb6u1mediumDLA-209-1

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