Bug 2021251 (CVE-2021-3935)

Summary:	CVE-2021-3935 pgbouncer: server processes unencrypted bytes from man-in-the-middle
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	devrim, mail, negativo17, praiskup, ricardo.arguello, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	PgBouncer 1.16.1	Doc Type:	If docs needed, set a value
Doc Text:	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.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-16 15:01:21 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2023784, 2023785
Bug Blocks:	2021308

Description Guilherme de Almeida Suckevicz 2021-11-08 16:33:51 UTC

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.

Comment 1 Guilherme de Almeida Suckevicz 2021-11-16 14:51:45 UTC

Created pgbouncer tracking bugs for this issue:

Affects: epel-all [bug 2023785]
Affects: fedora-all [bug 2023784]

Comment 2 Product Security DevOps Team 2021-11-16 15:01:19 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.