CVE-2024-32655

Npgsql is the .NET data provider for PostgreSQL. The WriteBind() method
in src/Npgsql/Internal/NpgsqlConnector.FrontendMessages.cs uses int
variables to store the message length and the sum of parameter lengths.
Both variables overflow when the sum of parameter lengths becomes too
large. This causes Npgsql to write a message size that is too small when
constructing a Postgres protocol message to send it over the network to the
database. When parsing the message, the database will only read a small
number of bytes and treat any following bytes as new messages while they
belong to the old message. Attackers can abuse this to inject arbitrary
Postgres protocol messages into the connection, leading to the execution of
arbitrary SQL statements on the application’s behalf. This vulnerability is
fixed in 4.0.14, 4.1.13, 5.0.18, 6.0.11, 7.0.7, and 8.0.3.