Firebird: Buffer overflow

Background

Firebird is an open source relational database that runs on Linux, Windows, and various UNIX systems.

Description

Cody Pierce from TippingPoint DVLabs has discovered a buffer overflow when processing “connect” requests with an overly large “p_cnct_count” value.

Impact

An unauthenticated remote attacker could send a specially crafted request to a vulnerable server, possibly resulting in the execution of arbitrary code with the privileges of the user running Firebird.

Workaround

There is no known workaround at this time.

Resolution

All Firebird users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/firebird-2.0.1"