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                       The U.S. Department of Energy
                   Computer Incident Advisory Capability
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                             INFORMATION BULLETIN

                Sybase Security Issues in ASE 12.5.3 and Earlier
                      [NGSSoftware Advisory #NISR05042005]

April 5, 2005 21:00 GMT                                           Number P-166
[REVISED 08 Apr 2005]
______________________________________________________________________________
PROBLEM:       There were six security flaws in Sybase Adaptive Server 
               Enterprise reported to Sybase by NGS Software (NGSS). 
PLATFORM:      Sybase 12.5.3 and Earlier 
DAMAGE:        Buffer overflow vulnerabilities occur in internal parsing 
               components and built-in functions that are accessible to all 
               authenticated Sybase users. They allow an attacker with no 
               special permission to take advantage of these flaws and no 
               mechanism exists to prevent a user from executing the 
               vulnerable code. 
SOLUTION:      Install the security patches. 
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VULNERABILITY  The risk is MEDIUM. An authenticated Sybase User could trigger a buffer 
ASSESSMENT:    overflow and gain full control of the database server. 
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LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/p-166.shtml 
 ORIGINAL BULLETIN:  http://www.ngssoftware.com/advisories/sybase-ase.txt 
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REVISION HISTORY:
04/08/05 - Corrected Vulnerability Assessment Section to say "authenticated Sybase User" instead of unauthenticated.

[***** Start NGSSoftware Advisory #NISR05042005 *****]

Visit NGSsoftware's Website directly for their published information:

http://www.ngssoftware.com/advisories/sybase-ase.txt

[***** End NGSSoftware Advisory #NISR05042005 *****]
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CIAC wishes to acknowledge the contributions of NGSSoftware for the 
information contained in this bulletin.
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CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

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