VulnerabilityModified
CVE-2012-4522
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.
MEDIUM 5.0EPSS 2.20%
Does this matter?
Lower severity and a low EPSS score (2.20%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
- EPSS
- 2.20% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- ruby-lang/ruby
- Source
- secalert@redhat.com
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090235.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090515.html
- http://rhn.redhat.com/errata/RHSA-2013-0129.html
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37163
- http://www.openwall.com/lists/oss-security/2012/10/12/6
- http://www.openwall.com/lists/oss-security/2012/10/13/1
- http://www.openwall.com/lists/oss-security/2012/10/16/1
- http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090235.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090515.html
- http://rhn.redhat.com/errata/RHSA-2013-0129.html
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37163
- http://www.openwall.com/lists/oss-security/2012/10/12/6
- http://www.openwall.com/lists/oss-security/2012/10/13/1
- http://www.openwall.com/lists/oss-security/2012/10/16/1
- http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.