CVE-2021-22992

Description

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, a malicious HTTP response to an Advanced WAF/BIG-IP ASM virtual server with Login Page configured in its policy may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may allow remote code execution (RCE), leading to complete system compromise. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

References

Link	Tags
https://support.f5.com/csp/article/K52510511	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-22992?: CVE-2021-22992 has been scored as a critical severity vulnerability.
How to fix CVE-2021-22992?: To fix CVE-2021-22992, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22992 being actively exploited in the wild?: It is possible that CVE-2021-22992 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22992?: CVE-2021-22992 affects n/a BIG-IP Advanced WAF and BIG-IP ASM.

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Description

Category

CWE-120 – Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

References

Frequently Asked Questions