CVE-2021-23049

Description

On BIG-IP version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3, when the iRules RESOLVER::summarize command is used on a virtual server, undisclosed requests can cause an increase in Traffic Management Microkernel (TMM) memory utilization resulting in an out-of-memory condition and a denial-of-service (DoS). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.89% Top 30%
Vendor Advisory f5.com
Affected: n/a BIG-IP
Published at:
Updated at:

References

Link Tags
https://support.f5.com/csp/article/K65397301 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-23049?
CVE-2021-23049 has been scored as a high severity vulnerability.
How to fix CVE-2021-23049?
To fix CVE-2021-23049, 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-2021-23049 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-23049 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23049?
CVE-2021-23049 affects n/a BIG-IP.
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