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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2024-32655)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2024-32655)

ID	Name	Product	Family	Severity
261983	Linux Distros Unpatched Vulnerability : CVE-2024-32655	Nessus	Misc.	high
420413	SCA: security update for Npgsql (GHSA-x9vc-6hfv-hg8c)	Tenable Cloud Security	SCA Checks	high
420413	SCA: security update for Npgsql (GHSA-x9vc-6hfv-hg8c)	Tenable Self-Hosted Container Security	SCA Checks	high

Detections

Analytics

CVE-2024-32655

high

Tenable Plugins

high

high

high