CVE-2012-4522
First published: Sat Nov 24 2012(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ruby | =1.9.3 | |
| Ruby | =2.0.0 |
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Reference Links
- 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/
Frequently Asked Questions
What is the severity of CVE-2012-4522?
CVE-2012-4522 has a medium severity rating, allowing attackers to exploit file creation vulnerabilities.
How do I fix CVE-2012-4522?
To fix CVE-2012-4522, update Ruby to version 1.9.3 patchlevel 286 or later, or 2.0.0 revision r37163 or later.
What are the implications of CVE-2012-4522?
Exploitation of CVE-2012-4522 can lead to the creation of files in unexpected locations, potentially compromising system integrity.
Which versions of Ruby are affected by CVE-2012-4522?
CVE-2012-4522 affects Ruby versions 1.9.3 prior to patchlevel 286 and 2.0.0 prior to r37163.
Can CVE-2012-4522 be exploited remotely?
CVE-2012-4522 requires context-dependent access, meaning it cannot be exploited remotely without specific conditions.
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- version/ruby/1.9.3
- version/ruby/2.0.0