SB2013042602 - Permissions, Privileges, and Access Controls in Ruby
Published: April 26, 2013 Updated: August 3, 2020
Security Bulletin ID
SB2013042602
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-4464)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
Ruby 1.9.3 before patchlevel 286 and 2.0 before revision r37068 allows context-dependent attackers to bypass safe-level restrictions and modify untainted strings via the (1) exc_to_s or (2) name_err_to_s API function, which marks the string as tainted, a different vulnerability than CVE-2012-4466. NOTE: this issue might exist because of a CVE-2011-1005 regression.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089554.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089887.html
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37068
- http://www.openwall.com/lists/oss-security/2012/10/02/4
- http://www.openwall.com/lists/oss-security/2012/10/03/9
- http://www.ruby-lang.org/en/news/2012/10/12/cve-2012-4464-cve-2012-4466/
- https://bugzilla.redhat.com/show_bug.cgi?id=862598