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Fencer Intel
medium 5.0

CVE-2012-4522 json

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attacker…

published 2012-11-24 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4450

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

Patch / fix

  • php openshift 1 5.3.3-22.el6
  • graphviz openshift 1 2.26.0-10.el6
  • php-imap openshift 1 5.3.3-22.el6
  • php-bcmath openshift 1 5.3.3-22.el6
  • graphviz-gd openshift 1 2.26.0-10.el6
  • php-process openshift 1 5.3.3-22.el6
  • php-mbstring openshift 1 5.3.3-22.el6
  • ruby193-ruby openshift 1 1.9.3.327-25.el6

red hat advisories RHSA-2013:0582RHSA-2013:0129

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-2012-4522 updated cvss 4.3

ruby: unintentional file creation caused by inserting an illegal NUL character

  • Red Hat Enterprise Linux (v. 5 server) ruby 1.8.5-27.el5, ruby-ri 1.8.5-27.el5, ruby-irb 1.8.5-27.el5, ruby-libs 1.8.5-27.el5, ruby-mode 1.8.5-27.el5, ruby-rdoc 1.8.5-27.el5, +1 more Red Hat Enterprise Linux Desktop (v. 5 client) ruby 1.8.5-27.el5, ruby-ri 1.8.5-27.el5, ruby-irb 1.8.5-27.el5, ruby-libs 1.8.5-27.el5, ruby-rdoc 1.8.5-27.el5, ruby-tcltk 1.8.5-27.el5 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) ruby 1.8.5-27.el5, ruby-mode 1.8.5-27.el5
    fixed: vendor fix RHSA-2013:0129
  • Red Hat OpenShift Enterprise Infrastructure graphviz 2.26.0-10.el6, graphviz-gd 2.26.0-10.el6, rubygem-bson 1.8.1-2.el6op, graphviz-ruby 2.26.0-10.el6, rubygem-mongo 1.8.1-2.el6op, ruby193-ruby 1.9.3.327-25.el6, +25 more Red Hat OpenShift Enterprise JBoss EAP add-on openshift-origin-cartridge-jbosseap-6.0 1.0.4-1.el6op Red Hat OpenShift Enterprise Node php 5.3.3-22.el6, php-imap 5.3.3-22.el6, php-bcmath 5.3.3-22.el6, php-process 5.3.3-22.el6, php-mbstring 5.3.3-22.el6, rubygem-bson 1.8.1-2.el6op, +32 more
    fixed: vendor fix RHSA-2013:0582
  • Red Hat Enterprise Linux 6 ruby, ruby-ri, ruby-irb, ruby-libs, ruby-rdoc, ruby-tcltk
    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

2.20% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.