CVE-2024-32655
Both variables overflow when the sum of parameter lengths becomes too large.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.72% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-89, CWE-190
- Source
- security-advisories@github.com
References
- https://github.com/npgsql/npgsql/commit/091655eed0c84e502ab424950c930339d17c1928
- https://github.com/npgsql/npgsql/commit/3183efb2bdcca159c8c2e22af57e18ea8f853cf0
- https://github.com/npgsql/npgsql/commit/67acbe027e28477ac2199e15cfb554bb2ffaf169
- https://github.com/npgsql/npgsql/commit/703d9af8fa48dfe8c0180e36edb8278f34342d7b
- https://github.com/npgsql/npgsql/commit/a22a42d8141d7a3528f43c02c095a409507cf1af
- https://github.com/npgsql/npgsql/commit/e34e2ba8042e666d9af54a1b255fba4d5b11df56
- https://github.com/npgsql/npgsql/commit/f7e7ead0702d776a8f551f5786c4cac2d65c4bc6
- https://github.com/npgsql/npgsql/releases/tag/v4.0.14
- https://github.com/npgsql/npgsql/releases/tag/v4.1.13
- https://github.com/npgsql/npgsql/releases/tag/v5.0.18
- https://github.com/npgsql/npgsql/releases/tag/v6.0.11
- https://github.com/npgsql/npgsql/releases/tag/v7.0.7
- https://github.com/npgsql/npgsql/releases/tag/v8.0.3
- https://github.com/npgsql/npgsql/security/advisories/GHSA-x9vc-6hfv-hg8c
- https://www.youtube.com/watch?v=Tfg1B8u1yvE
- https://github.com/npgsql/npgsql/commit/091655eed0c84e502ab424950c930339d17c1928
- https://github.com/npgsql/npgsql/commit/3183efb2bdcca159c8c2e22af57e18ea8f853cf0
- https://github.com/npgsql/npgsql/commit/67acbe027e28477ac2199e15cfb554bb2ffaf169
- https://github.com/npgsql/npgsql/commit/703d9af8fa48dfe8c0180e36edb8278f34342d7b
- https://github.com/npgsql/npgsql/commit/a22a42d8141d7a3528f43c02c095a409507cf1af
- https://github.com/npgsql/npgsql/commit/e34e2ba8042e666d9af54a1b255fba4d5b11df56
- https://github.com/npgsql/npgsql/commit/f7e7ead0702d776a8f551f5786c4cac2d65c4bc6
- https://github.com/npgsql/npgsql/releases/tag/v4.0.14
- https://github.com/npgsql/npgsql/releases/tag/v4.1.13
- https://github.com/npgsql/npgsql/releases/tag/v5.0.18
- https://github.com/npgsql/npgsql/releases/tag/v6.0.11
- https://github.com/npgsql/npgsql/releases/tag/v7.0.7
- https://github.com/npgsql/npgsql/releases/tag/v8.0.3
- https://github.com/npgsql/npgsql/security/advisories/GHSA-x9vc-6hfv-hg8c
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.