CVE catalog

CVE-2012-5370

jruby: CVE-2012-5370

[CVE catalog]

Severity
Medium
Published
Source
[NVD] · [CVE record]
EPSS
2.25% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianjrubysid10.1.2.0+ds-1fixed
Debianjrubyforky10.1.2.0+ds-1fixed
Debianjrubytrixie9.4.8.0+ds-3fixed
Debianjrubybookworm9.3.9.0+ds-8fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianjrubysourcesid1.5.6-5not yet assignedNot reported[694694]
Debianjrubysourceforky1.5.6-5not yet assignedNot reported[694694]
Debianjrubysourcetrixie1.5.6-5not yet assignedNot reported[694694]
Debianjrubysourcebookworm1.5.6-5not yet assignedNot reported[694694]

[Debian bug #694694]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [jruby]Fixed
    Details (2)

    • 9.3.9.0+ds-8 · all · bookworm

      Fixed · Fixed: 1.5.6-5

      dsa · jruby · debian · bookworm; dsa · jruby · debian · 12

    • 9.3.9.0+ds-8 · all · bookworm

      Fixed · Fixed: 1.5.6-5

      dsa · jruby · debian · bookworm; dsa · jruby · debian · 12

[Debian 13 (Trixie)]

  • [jruby]Fixed
    Details (2)

    • 9.4.8.0+ds-3 · all · trixie

      Fixed · Fixed: 1.5.6-5

      dsa · jruby · debian · 13

    • 9.4.8.0+ds-3 · all · trixie

      Fixed · Fixed: 1.5.6-5

      dsa · jruby · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]