CVE-2021-23047

Published: Sep 14, 2021Modified: Jun 17, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability: 3.9 / Impact: 1.4

Source: NVD

Description

On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x, when BIG-IP APM performs Online Certificate Status Protocol (OCSP) verification of a certificate that contains Authority Information Access (AIA), undisclosed requests may cause an increase in memory use. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected (6)

Products: F5: Big Ip Access Policy Manager

1 product

Big Ip Access Policy Manager

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
F5 Big Ip Access Policy Manager	11.6.1 ≤ version ≤ 11.6.5
F5 Big Ip Access Policy Manager	12.1.0 ≤ version ≤ 12.1.6
F5 Big Ip Access Policy Manager	13.1.0 ≤ version < 13.1.4
F5 Big Ip Access Policy Manager	14.1.0 ≤ version < 14.1.4.3
F5 Big Ip Access Policy Manager	15.1.0 ≤ version < 15.1.3.1
F5 Big Ip Access Policy Manager	16.0.0 ≤ version ≤ 16.0.1

Related CWEs

CWE-400

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (2)

https://support.f5.com/csp/article/K79428827

Source: f5sirt@f5.com

Vendor Advisory

https://support.f5.com/csp/article/K79428827

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.