CVE-2021-3935
pgbouncer - security update
8.1
HIGH
CVSS 3.1
EPSS 0.08%
Description
When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.
How to fix CVE-2021-3935
To remediate CVE-2021-3935, upgrade the affected package to a fixed version below.
- —upgrade to 1.16.1 or later
- —upgrade to 1.15.0-1+deb11u1 or later
- —upgrade to 1.7.2-2+deb9u1 or later
- —upgrade to 1.15.0-1+deb11u1 or later
Is CVE-2021-3935 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 1.16.1
- from 0, < 1.15.0-1+deb11u1
- from 0, < 1.7.2-2+deb9u1
- from 0, < 1.15.0-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |