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Fencer Intel
high 8.4

CVE-2015-7551 json

The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed…

published 10y ago modified 4mo ago also EUVD-2015-7465

cvss
8.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed in Apple OS X before 10.11.4 and other products, mishandles tainting, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted string, related to the DL module and the libffi library. NOTE: this vulnerability exists because of a CVE-2009-5147 regression.

Patch / fix

  • ruby2.0 Ubuntu 14.04 LTS 2.0.0.484-1ubuntu2.4

ubuntu advisories UBUNTU-CVE-2015-7551

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ruby4.0 hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-libs hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-bundled-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-default-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby3.3 hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-libs hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-bundled-gems hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-default-gems hummingbird 1 3.3.10-23.1.hum1

red hat advisories RHSA-2026:8838RHSA-2026:7305RHSA-2026:7307RHSA-2018:0583

  • ruby2.1 SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +6 more 2.1.9-15.1
  • ruby WebYast 1.3, Studio Onsite 1.3, SLES for SAP 11 SP4 +3 more 1.8.7.p357-0.9.19.1

suse advisories SUSE-SU-2017:1067-1SUSE-SU-2017:0948-1

  • ruby2.2 openSUSE Tumbleweed 2.2.5-1.5

opensuse advisories openSUSE-SU-2024:10481-1

Is CVE-2015-7551 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-7551 updated cvss 2.6

ruby: dlopen could open a library with tainted library name

  • Red Hat CloudForms Management Engine 5 ruby193-ruby Red Hat Enterprise Linux 4 ruby Red Hat Enterprise Linux 5 ruby Red Hat Enterprise Linux 6 ruby, ruby-ri, ruby-irb, ruby-libs, ruby-rdoc, ruby-tcltk Red Hat Enterprise Linux 7 ruby, ruby-irb, rubygems, ruby-libs, ruby-tcltk, rubygem-json, +6 more Red Hat Software Collections ruby193-ruby, ruby200-ruby, rh-ruby22-ruby, ruby193-ruby-irb, ruby193-rubygems, ruby200-ruby-irb, +31 more
    +1 more products
    Red Hat Subscription Asset Manager ruby193-ruby
    affected: no fix planned “Will not fix”
  • Red Hat Hardened Images ruby3.4 3.4.8-31.1.hum1, ruby4.0 4.0.0-33.3.hum1, ruby3.3 3.3.10-23.1.hum1, ruby3.4-libs 3.4.8-31.1.hum1, ruby4.0-libs 4.0.0-33.3.hum1, ruby3.3-libs 3.3.10-23.1.hum1, +6 more
    fixed: vendor fix RHSA-2026:7305
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby22-ruby 2.2.9-19.el6, rh-ruby22-ruby-irb 2.2.9-19.el6, rh-ruby22-ruby-libs 2.2.9-19.el6, rh-ruby22-ruby-tcltk 2.2.9-19.el6, rh-ruby22-rubygems 2.4.5.4-19.el6, rh-ruby22-rubygem-rdoc 4.2.0-19.el6, +8 more Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby22-ruby 2.2.9-19.el7, rh-ruby22-ruby-irb 2.2.9-19.el7, rh-ruby22-ruby-libs 2.2.9-19.el7, rh-ruby22-ruby-tcltk 2.2.9-19.el7, rh-ruby22-rubygems 2.4.5.4-19.el7, rh-ruby22-rubygem-rdoc 4.2.0-19.el7, +8 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-ruby22-ruby 2.2.9-19.el6, rh-ruby22-ruby-irb 2.2.9-19.el6, rh-ruby22-ruby-libs 2.2.9-19.el6, rh-ruby22-ruby-tcltk 2.2.9-19.el6, rh-ruby22-rubygems 2.4.5.4-19.el6, rh-ruby22-rubygem-rdoc 4.2.0-19.el6, +8 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-ruby22-ruby 2.2.9-19.el7, rh-ruby22-ruby-irb 2.2.9-19.el7, rh-ruby22-ruby-libs 2.2.9-19.el7, rh-ruby22-ruby-tcltk 2.2.9-19.el7, rh-ruby22-rubygems 2.4.5.4-19.el7, rh-ruby22-rubygem-rdoc 4.2.0-19.el7, +8 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby22-ruby 2.2.9-19.el7, rh-ruby22-ruby-irb 2.2.9-19.el7, rh-ruby22-ruby-libs 2.2.9-19.el7, rh-ruby22-ruby-tcltk 2.2.9-19.el7, rh-ruby22-rubygems 2.4.5.4-19.el7, rh-ruby22-rubygem-rdoc 4.2.0-19.el7, +8 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby22-ruby 2.2.9-19.el6, rh-ruby22-ruby-irb 2.2.9-19.el6, rh-ruby22-ruby-libs 2.2.9-19.el6, rh-ruby22-ruby-tcltk 2.2.9-19.el6, rh-ruby22-rubygems 2.4.5.4-19.el6, rh-ruby22-rubygem-rdoc 4.2.0-19.el6, +8 more
    +1 more products
    Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby22-ruby 2.2.9-19.el7, rh-ruby22-ruby-irb 2.2.9-19.el7, rh-ruby22-ruby-libs 2.2.9-19.el7, rh-ruby22-ruby-tcltk 2.2.9-19.el7, rh-ruby22-rubygems 2.4.5.4-19.el7, rh-ruby22-rubygem-rdoc 4.2.0-19.el7, +8 more
    fixed: vendor fix RHSA-2018:0583
  • Red Hat Hardened Images rubygem3.3-rbs 3.4.0-23.1.hum1, rubygem3.3-rss 0.3.1-23.1.hum1, rubygem3.4-rbs 3.8.0-31.1.hum1, rubygem3.4-rss 0.3.1-31.1.hum1, rubygem4.0-rss 0.3.2-33.3.hum1, rubygem3.3-irb 1.13.1-23.1.hum1, +45 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.4 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.