CVE-2021-3935

Summary

CVECVE-2021-3935
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-22 16:15:00 UTC
Updated2023-11-07 03:38:00 UTC
DescriptionWhen 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.

Risk And Classification

Problem Types: CWE-295

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 35 All All All
Application Pgbouncer Pgbouncer All All All All
Operating System Redhat Enterprise Linux 7.0 All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2922-1] pgbouncer security update MLIST lists.debian.org
PgBouncer changelog MISC www.pgbouncer.org
2021251 – (CVE-2021-3935) CVE-2021-3935 pgbouncer: server processes unencrypted bytes from man-in-the-middle MISC bugzilla.redhat.com
[SECURITY] Fedora 35 Update: pgbouncer-1.16.1-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: pgbouncer-1.16.1-1.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179075 Debian Security Update for pgbouncer (DLA 2922-1)
  • 182716 Debian Security Update for pgbouncer (CVE-2021-3935)
  • 282209 Fedora Security Update for pgbouncer (FEDORA-2021-761cda0b77)
  • 503212 Alpine Linux Security Update for pgbouncer
  • 506152 Alpine Linux Security Update for pgbouncer
  • 900357 Common Base Linux Mariner (CBL-Mariner) Security Update for pgbouncer (6245)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report