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Firebird Relational Database Multiple Buffer Overflow Vulnerabilities
Published: October 3, 2007
Updated: October 3, 2007
There exists multiple vulnerabilities within functions of Firebird
Database, which when properly exploited can lead to remote compromise of the
These vulnerabilities were confirmed by us in the following versions of
Relational Database, other versions may be also affected.
The vulnerable functions do not validate user supplied data when copying
it to a
stack-based buffer, resulting in a stack-based buffer overflow. The
of these vulnerabilities are trivial and results in remote compromise of the
This is the list of vulnerable functions, some of them contain more than one
stack-based buffer overflow vulnerability.
1. INET_connect (Firebird 1.5)
2. SVC_attach (Firebird 1.5)
3. isc_attach_database (Firebird 2.0)
4. isc_create_database (Firebird 2.0)
These vulnerabilities can be triggered by sending specially crafted attach,
create and service attach requests.
Proof of concept codes for these vulnerabilities can be downloaded from our
The vulnerabilities 1 and 2 were cerrected in Firebird XX-V188.8.131.5248,
3 and 4
were corrected in Firebird XX-V184.108.40.20681.
These vulnerabilities were discovered by Adriano Lima