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CVE-2018-5500

UnknownEPSS 1.42%

Last modified

CVE-2018-5500 is a vulnerability of currently unknown severity. On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.. EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.

Metrics

EPSS Probability
1.42%

69.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Local Traffic Manager13.0.0
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Application Acceleration Manager13.0.0
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Advanced Firewall Manager13.0.0
F5Big-Ip Analytics>= 11.6.1, <= 11.6.2
F5Big-Ip Analytics>= 12.1.0, <= 12.1.3.1
F5Big-Ip Analytics13.0.0
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Access Policy Manager13.0.0
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Application Security Manager13.0.0
F5Big-Ip Dns>= 11.6.1, <= 11.6.2
F5Big-Ip Dns>= 12.1.0, <= 12.1.3.1
F5Big-Ip Dns13.0.0
F5Big-Ip Link Controller>= 11.6.1, <= 11.6.2
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.3.1
F5Big-Ip Link Controller13.0.0
F5Big-Ip Policy Enforcement Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Policy Enforcement Manager13.0.0
F5Big-Ip Websafe>= 11.6.1, <= 11.6.2
F5Big-Ip Websafe>= 12.1.0, <= 12.1.3.1
F5Big-Ip Websafe13.0.0
F5Big-Ip Edge Gateway>= 11.6.1, <= 11.6.2
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.3.1
F5Big-Ip Edge Gateway13.0.0
F5Big-Ip Global Traffic Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Global Traffic Manager13.0.0
F5Big-Ip Webaccelerator>= 11.6.1, <= 11.6.2
F5Big-Ip Webaccelerator>= 12.1.0, <= 12.1.3.1
F5Big-Ip Webaccelerator13.0.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-5500?
On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.
How severe is CVE-2018-5500?
Severity scoring for CVE-2018-5500 is pending analysis. The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5500?
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.

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Source: NVD / NIST