Firebird “fbserver” Service Connect Request Handling Buffer Overflow Vulnerability

Vulnerability has been identified in Firebird, which could be exploited by remote attackers to cause a denial of service or take complete control of an affected system. This issue is caused by a buffer overflow error in the “fbserver.exe” service (port 3050/TCP) when processing a “connect” request (0x1) with a large “p_cnct_count” value, which could be exploited by remote unauthenticated attackers to crash an affected application or execute arbitrary code with the privileges of the database.

Affected Products

Firebird version 2.0.0

Solution

Upgrade ASAP to Firebird version 2.0.1 :
http://www.firebirdsql.org/index.php?op=files&id=engine_201

Firebird for MacOS Intel – fresh builds

There are two new updated packages available on ibphoenix.com

http://www.ibphoenix.com/downloads

Firebird 2.0.1 for MacOS Intel (x86)

I have two new builds of Firebird for x86 MacOS (CS and SS)
The SS build should now use UDF’s properly and
the server should start and stop properly.

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