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Category:   Application (Security)  >   Cyrus SASL Vendors:   Carnegie Mellon University
Cyrus SASL Buffer Overflow in sasl_encode64 Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1022231
SecurityTracker URL:  http://securitytracker.com/id/1022231
CVE Reference:   CVE-2009-0688   (Links to External Site)
Date:  May 15 2009
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.1.22 and prior versions
Description:   A vulnerability was reported in Cyrus SASL. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data to trigger a buffer overflow in the sasl_encode64() function and execute arbitrary code on the target system. The code will run with the privileges of the target service.

The original advisory is available at:

http://www.kb.cert.org/vuls/id/238019

US-CERT reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (2.1.23).

The vendor's advisory is available at:

http://lists.andrew.cmu.edu/pipermail/cyrus-sasl/2009-May/001723.html

Vendor URL:  asg.web.cmu.edu/sasl/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 18 2009 (Sun Issues Fix) Cyrus SASL Buffer Overflow in sasl_encode64 Lets Remote Users Execute Arbitrary Code
Sun has issued a fix for OpenSolaris.
Jun 18 2009 (Red Hat Issues Fix) Cyrus SASL Buffer Overflow in sasl_encode64 Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 4 and 5.



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