Strix
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CVE-2015-4638

UnknownEPSS 1.74%

Last modified

CVE-2015-4638 is a vulnerability of currently unknown severity. The FastL4 virtual server in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and PEM 11.3.0 through 11.5.2 and 11.6.0 through 11.6.0 HF4, BIG-IP Edge Gateway, WebAccelerator, and WOM 11.2.1 through 11.3.0, and BIG-IP PSM 11.2.1 through 11.4.1 allows remote attackers to cause a denial of service (Traffic Management Microkernel restart) via a fragmented packet.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

The FastL4 virtual server in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and PEM 11.3.0 through 11.5.2 and 11.6.0 through 11.6.0 HF4, BIG-IP Edge Gateway, WebAccelerator, and WOM 11.2.1 through 11.3.0, and BIG-IP PSM 11.2.1 through 11.4.1 allows remote attackers to cause a denial of service (Traffic Management Microkernel restart) via a fragmented packet.

Metrics

EPSS Probability
1.74%

74.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Advanced Firewall Manager11.3.0
F5Big-Ip Advanced Firewall Manager11.4.0
F5Big-Ip Advanced Firewall Manager11.4.1
F5Big-Ip Advanced Firewall Manager11.5.0
F5Big-Ip Advanced Firewall Manager11.5.1
F5Big-Ip Advanced Firewall Manager11.5.2
F5Big-Ip Advanced Firewall Manager11.6.0
F5Big-Ip Analytics11.3.0
F5Big-Ip Analytics11.4.0
F5Big-Ip Analytics11.4.1
F5Big-Ip Analytics11.5.0
F5Big-Ip Analytics11.5.1
F5Big-Ip Analytics11.5.2
F5Big-Ip Analytics11.6.0
F5Big-Ip Application Security Manager11.3.0
F5Big-Ip Application Security Manager11.4.0
F5Big-Ip Application Security Manager11.4.1
F5Big-Ip Application Security Manager11.5.0
F5Big-Ip Application Security Manager11.5.1
F5Big-Ip Application Security Manager11.5.2
F5Big-Ip Application Security Manager11.6.0
F5Big-Ip Edge Gateway11.2.1
F5Big-Ip Edge Gateway11.3.0
F5Big-Ip Global Traffic Manager11.3.0
F5Big-Ip Global Traffic Manager11.4.0
F5Big-Ip Global Traffic Manager11.4.1
F5Big-Ip Global Traffic Manager11.5.0
F5Big-Ip Global Traffic Manager11.5.1
F5Big-Ip Global Traffic Manager11.5.2
F5Big-Ip Global Traffic Manager11.6.0
F5Big-Ip Link Controller11.3.0
F5Big-Ip Link Controller11.4.0
F5Big-Ip Link Controller11.4.1
F5Big-Ip Link Controller11.5.0
F5Big-Ip Link Controller11.5.1
F5Big-Ip Link Controller11.5.2
F5Big-Ip Link Controller11.6.0
F5Big-Ip Local Traffic Manager11.3.0
F5Big-Ip Local Traffic Manager11.4.0
F5Big-Ip Local Traffic Manager11.4.1
F5Big-Ip Local Traffic Manager11.5.0
F5Big-Ip Local Traffic Manager11.5.1
F5Big-Ip Local Traffic Manager11.5.2
F5Big-Ip Local Traffic Manager11.6.0
F5Big-Ip Policy Enforcement Manager11.3.0
F5Big-Ip Policy Enforcement Manager11.4.0
F5Big-Ip Policy Enforcement Manager11.4.1
F5Big-Ip Policy Enforcement Manager11.5.0
F5Big-Ip Policy Enforcement Manager11.5.1
F5Big-Ip Policy Enforcement Manager11.5.2

Showing 50 of 57 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-4638?
The FastL4 virtual server in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and PEM 11.3.0 through 11.5.2 and 11.6.0 through 11.6.0 HF4, BIG-IP Edge Gateway, WebAccelerator, and WOM 11.2.1 through 11.3.0, and BIG-IP PSM 11.2.1 through 11.4.1 allows remote attackers to cause a denial of service (Traffic Management Microkernel restart) via a fragmented packet.
How severe is CVE-2015-4638?
Severity scoring for CVE-2015-4638 is pending analysis. The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.
How do I fix CVE-2015-4638?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-4638?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST