Bug 826263 (CVE-2012-2658)

Summary: CVE-2012-2658 unixodbc: buffer overflow due to improper checking of DRIVER= input
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: hhorak, ldimaggi, tgl
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-05-30 21:23:00 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 826265    

Description Vincent Danen 2012-05-29 21:31:58 UTC
It was reported that the unixODBC library does not properly check the input from the DRIVER= option in the DSN, which could cause a buffer overflow when passed to the SQLDriverConnect() function.  The vulnerable versions are reported as being >= 2.3.1.

This has not been corrected upstream as of yet.

Comment 1 Vincent Danen 2012-05-29 21:35:54 UTC
The original report to oss-security is here:


Comment 3 Vincent Danen 2012-05-30 21:23:00 UTC
The DSN can only be supplied from a trusted environment, such as a configuration file or in a script written by the author (such as a PHP script).  The DSN should never come from an untrusted source (such as user input) in these cases.  The isql tool allows a user to supply an arbitrary DSN, but the end result there is the termination of the isql tool itself.


Red Hat does not consider a user assisted client crash such as this to be a security flaw.