Description

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.

INFO

Published Date :

May 14, 2024, 3:36 p.m.

Last Modified :

May 14, 2024, 4:12 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Public PoC/Exploit Available at Github

CVE-2024-32655 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-32655 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Dockerfile C# HTML CSS JavaScript

Updated: 2 weeks, 2 days ago
1 stars 0 fork 0 watcher
Born at : May 29, 2024, 9:02 a.m. This repo has been linked 8 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-32655 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Received by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/security/advisories/GHSA-x9vc-6hfv-hg8c [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/091655eed0c84e502ab424950c930339d17c1928 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/3183efb2bdcca159c8c2e22af57e18ea8f853cf0 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/67acbe027e28477ac2199e15cfb554bb2ffaf169 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/703d9af8fa48dfe8c0180e36edb8278f34342d7b [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/a22a42d8141d7a3528f43c02c095a409507cf1af [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/e34e2ba8042e666d9af54a1b255fba4d5b11df56 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/commit/f7e7ead0702d776a8f551f5786c4cac2d65c4bc6 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v4.0.14 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v4.1.13 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v5.0.18 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v6.0.11 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v7.0.7 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/npgsql/npgsql/releases/tag/v8.0.3 [No types assigned]
    Added CWE GitHub, Inc. CWE-190
    Added CWE GitHub, Inc. CWE-89
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-32655 is associated with the following CWEs:

CVSS31 - Vulnerability Scoring System
Attack Vector
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