Ubuntu.comUB:CVE-2021-3935CVE-2021-3935
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
40.8%
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.
References
www.pgbouncer.org/changelog.html#pgbouncer-116x
bugzilla.redhat.com/show_bug.cgi?id=2021251
github.com/pgbouncer/pgbouncer/commit/e4453c9151a2f5af0a9cb049b302a3f9f9654453 (v1.16.1)
github.com/pgbouncer/pgbouncer/releases/tag/pgbouncer_1_16_1
launchpad.net/bugs/cve/CVE-2021-3935
nvd.nist.gov/vuln/detail/CVE-2021-3935
security-tracker.debian.org/tracker/CVE-2021-3935
www.cve.org/CVERecord?id=CVE-2021-3935
www.pgbouncer.org/2021/11/pgbouncer-1-16-1
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
40.8%