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.
Configurations

No configuration.

History

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Information

Published : 2024-05-14 15:36

Updated : 2024-05-14 16:12


NVD link : CVE-2024-32655

Mitre link : CVE-2024-32655

CVE.ORG link : CVE-2024-32655


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Products Affected

No product.

CWE
CWE-190

Integer Overflow or Wraparound

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')