CVE-2026-119923 Heap-based Buffer Overflow in Babelfish for PostgreSQL TDS Prelogin Parser
- Published
- Updated
- Exploit status
- No public exploit known
Description
A heap-based buffer overflow in the TDS prelogin parser in the Babelfish for PostgreSQL extension versions 1.0-1.5, 2.1-2.15, 3.1-3.12, 4.0-4.8, 5.1-5.4 and in Amazon Aurora PostgreSQL with Babelfish might allow remote attackers to execute arbitrary OS commands as the database process user via a specially crafted malformed TDS prelogin packet to the TDS port. This record consolidates a related NULL-pointer-dereference finding in the same prelogin parser.
To remediate this issue, we recommend users upgrade to Babelfish for PostgreSQL extension versions 4.10, 5.6, 6.1 or later. As a workaround, restrict network access to the TDS port (default 1433). Customers using Amazon Aurora PostgreSQL with Babelfish should upgrade their cluster to Aurora PostgreSQL 13.9.16 (1.5.5), 13.23.3 (1.17.2), 14.6.16 (2.3.5), 14.17.8 (2.12.4), 14.18.6 (2.13.3), 14.19.5 (2.14.2), 14.20.5 (2.15.2), 14.22.3 (2.16.1), 14.23.1 (2.17.0), 15.10.8 (3.8.4), 15.12.8 (3.9.4), 15.13.6 (3.10.3), 15.14.5 (3.11.2), 15.15.5 (3.12.2), 15.17.3 (3.13.1), 15.18.1 (3.14.0), 16.8.8 (4.5.5), 16.9.6 (4.6.3), 16.10.5 (4.7.2), 16.11.5 (4.8.2), 16.13.3 (4.9.1), 16.14.1 (4.10.0), 17.4.8 (5.1.4), 17.5.6 (5.2.3), 17.6.5 (5.3.2), 17.7.5 (5.4.2), 17.9.3 (5.5.1), 17.10.1 (5.6.0), 18.3.4 (6.0.2), 18.4.1 (6.1.0) or later, and apply any pending maintenance to ensure they are on the latest patch.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| AWS babelfish-for-postgresql | >= 1.0, <= 1.5 | No fix listed |
| AWS babelfish-for-postgresql | >= 2.1, <= 2.15 | No fix listed |
| AWS babelfish-for-postgresql | >= 3.1, <= 3.12 | No fix listed |
| AWS babelfish-for-postgresql | >= 4.0, <= 4.8 | No fix listed |
| AWS babelfish-for-postgresql | >= 5.1, <= 5.4 | No fix listed |
| Amazon Aurora PostgreSQL with Babelfish | >= 1.0.0, < 1.5.5 | 1.5.5 |
| Amazon Aurora PostgreSQL with Babelfish | >= 1.6.0, < 1.17.2 | 1.17.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.0.0, < 2.3.5 | 2.3.5 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.4.0, < 2.12.4 | 2.12.4 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.13.0, < 2.13.3 | 2.13.3 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.14.0, < 2.14.2 | 2.14.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.15.0, < 2.15.2 | 2.15.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 2.16.0, < 2.16.1 | 2.16.1 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.0.0, < 3.8.4 | 3.8.4 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.9.0, < 3.9.4 | 3.9.4 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.10.0, < 3.10.3 | 3.10.3 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.11.0, < 3.11.2 | 3.11.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.12.0, < 3.12.2 | 3.12.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 3.13.0, < 3.13.1 | 3.13.1 |
| Amazon Aurora PostgreSQL with Babelfish | >= 4.0.0, < 4.5.5 | 4.5.5 |
| Amazon Aurora PostgreSQL with Babelfish | >= 4.6.0, < 4.6.3 | 4.6.3 |
| Amazon Aurora PostgreSQL with Babelfish | >= 4.7.0, < 4.7.2 | 4.7.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 4.8.0, < 4.8.2 | 4.8.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 4.9.0, < 4.9.1 | 4.9.1 |
| Amazon Aurora PostgreSQL with Babelfish | >= 5.0.0, < 5.1.4 | 5.1.4 |
Show 5 more
| Amazon Aurora PostgreSQL with Babelfish | >= 5.2.0, < 5.2.3 | 5.2.3 |
| Amazon Aurora PostgreSQL with Babelfish | >= 5.3.0, < 5.3.2 | 5.3.2 |
| Amazon Aurora PostgreSQL with Babelfish | >= 5.4.0, < 5.4.2 | 5.4.2 |
| Amazon Aurora PostgreSQL with Babelfish | = 5.5.0 | No fix listed |
| Amazon Aurora PostgreSQL with Babelfish | >= 6.0.0, < 6.0.2 | 6.0.2 |
References
- github.com patch release-notes
- github.com patch release-notes
- github.com patch release-notes
- aws.amazon.com vendor-advisory
- github.com third-party-advisory