CVE-2024-32655

Summary

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.

Affected Software

VendorProductVersion RangeStatus
npgsqlnpgsql>= 4.0.0, < 4.0.14affected
npgsqlnpgsql>= 4.1.0, < 4.1.13affected
npgsqlnpgsql>= 5.0.0, < 5.0.18affected
npgsqlnpgsql>= 6.0.0, < 6.0.11affected
npgsqlnpgsql>= 7.0.0, < 7.0.7affected
npgsqlnpgsql>= 8.0.0, < 8.0.3affected

Weaknesses

  • CWE-190: CWE-190: Integer Overflow or Wraparound
  • CWE-89: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

CVE Program Container

Additional References

References