Firebird 'TraceDSQLPrepare::prepare()' Function NULL Pointer Denial of Service Vulnerability

Bugtraq ID:	56521
Class:	Failure to Handle Exceptional Conditions
CVE:	CVE-2012-5529
Remote:	Yes
Local:	No
Published:	Nov 14 2012 12:00AM
Updated:	Mar 15 2013 06:25PM
Credit:	Dmitriy Starodubov
Vulnerable:	Firebird Firebird 2.0.2 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:

Firebird 'TraceDSQLPrepare::prepare()' Function NULL Pointer Denial of Service Vulnerability

Firebird is prone to a denial-of-service vulnerability caused by a NULL-pointer dereference error.

An attacker can exploit this issue to crash the application, resulting in a denial-of-service condition.

Firebird 2.5.0 and 2.5.1 are vulnerable; other versions may also be affected.

Firebird 'TraceDSQLPrepare::prepare()' Function NULL Pointer Denial of Service Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Firebird 'TraceDSQLPrepare::prepare()' Function NULL Pointer Denial of Service Vulnerability

Solution:
Updates are available. Please see the references for more information.

Firebird 'TraceDSQLPrepare::prepare()' Function NULL Pointer Denial of Service Vulnerability

References:

• Bug 876613 firebird: DoS (NULL pointer dereference) while (Red Hat)
  
• Debian Bug report logs - #693210 server crash on prearing an empty query with tr (Debian)
  
• Firebird Homepage (Firebird)
  
• Server crashes on preparing empty query when trace is enabled (Firebird)