CVE-2023-31136

low-risk
Published 2023-05-09

PostgresNIO is a Swift client for PostgreSQL. Any user of PostgresNIO prior to version 1.14.2 connecting to servers with TLS enabled is vulnerable to a man-in-the-middle attacker injecting false responses to the client's first few queries, despite the use of TLS certificate verification and encryption. The vulnerability is addressed in PostgresNIO versions starting from 1.14.2. There are no known workarounds for unpatched users.

Do I need to act?

-
0.20% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (1)

Postgresnio

Affected Vendors

Vapor

References (16)

Not Applicable https://github.com/advisories/GHSA-467w-rrqc-395f
Not Applicable https://github.com/advisories/GHSA-735f-7qx4-jqq5
Patch https://github.com/apple/swift-nio/pull/2419
Patch https://github.com/vapor/postgres-nio/commit/2df54bc94607f44584ae6ffa74e3cd754ff...
Release Notes https://github.com/vapor/postgres-nio/releases/tag/1.14.2
Vendor Advisory https://github.com/vapor/postgres-nio/security/advisories/GHSA-9cfh-vx93-84vv
Not Applicable https://www.postgresql.org/support/security/CVE-2021-23214/
Not Applicable https://www.postgresql.org/support/security/CVE-2021-23222/
Not Applicable https://github.com/advisories/GHSA-467w-rrqc-395f
Not Applicable https://github.com/advisories/GHSA-735f-7qx4-jqq5
Patch https://github.com/apple/swift-nio/pull/2419
Patch https://github.com/vapor/postgres-nio/commit/2df54bc94607f44584ae6ffa74e3cd754ff...
Release Notes https://github.com/vapor/postgres-nio/releases/tag/1.14.2
Vendor Advisory https://github.com/vapor/postgres-nio/security/advisories/GHSA-9cfh-vx93-84vv
Not Applicable https://www.postgresql.org/support/security/CVE-2021-23214/
Not Applicable https://www.postgresql.org/support/security/CVE-2021-23222/
19
/ 100
low-risk
Severity 13/34 · Low
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal