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Debian LTS Advisory DLA-4180-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Andreas Henriksson
May 27, 2025 https://wiki.debian.org/LTS
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Package : pgbouncer
Version : 1.15.0-1+deb11u1
CVE ID : CVE-2021-3935 CVE-2025-2291
Debian Bug : 1103394
PgBouncer is a lightweight connection pooler for PostgreSQL.
CVE-2021-3539
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.
CVE-2025-2291
Password can be used past expiry in PgBouncer due to auth_query not taking
into account Postgres its VALID UNTIL value, which allows an attacker to
log in with an already expired password
For Debian 11 bullseye, these problems have been fixed in version
1.15.0-1+deb11u1.
We recommend that you upgrade your pgbouncer packages.
For the detailed security status of pgbouncer please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pgbouncer
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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