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Check Point Advisories

F5 BIG-IP Buffer Overflow (CVE-2021-22992)

Check Point Reference: CPAI-2021-0146
Date Published: 14 Mar 2021
Severity: High
Last Updated: 20 Mar 2021
Industry Reference:CVE-2021-22992
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? BIG-IP WAF/ASM 16.0.0 - 16.0.1
BIG-IP WAF/ASM 15.1.0 - 15.1.2
BIG-IP WAF/ASM 14.1.0 - 14.1.3
BIG-IP WAF/ASM 13.1.0 - 13.1.3
BIG-IP WAF/ASM 12.1.0 - 12.1.5
BIG-IP WAF/ASM 11.6.1 - 11.6.5
Vulnerability Description A buffer overflow vulnerability exists in F5 BIG-IP. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code into the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

  1. In the IPS tab, click Protections and find the F5 BIG-IP Buffer Overflow (CVE-2021-22992) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  F5 BIG-IP Buffer Overflow (CVE-2021-22992)

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