News via oss-sec and [pkg-firebird-general] mailing list
A denial of service flaw was found in the way the TraceManager of
Firebird, performed preparation of an empty dynamic SQL query. When the trace mode was
enabled, a remote, authenticated database user could use this flaw
to cause the Firebird server to crash with a NULL pointer dereference.

References: [1]

Relevant upstream patch: [4]