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HIGH · 7.5

CVE-2018-5527

On BIG-IP 13.1.0-13.1.0.7, a remote attacker using undisclosed methods against virtual servers configured with a Client SSL or Server SSL profile that has the SSL Forward Proxy feature enabled can for...

Vulnerability Description

On BIG-IP 13.1.0-13.1.0.7, a remote attacker using undisclosed methods against virtual servers configured with a Client SSL or Server SSL profile that has the SSL Forward Proxy feature enabled can force the Traffic Management Microkernel (tmm) to leak memory. As a result, system memory usage increases over time, which may eventually cause a decrease in performance or a system reboot due to memory exhaustion.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Advanced Firewall Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Analytics>= 13.0.0, <= 13.1.0.7
F5Big-Ip Application Acceleration Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Application Security Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Domain Name System>= 13.0.0, <= 13.1.0.7
F5Big-Ip Edge Gateway>= 13.0.0, <= 13.1.0.7
F5Big-Ip Global Traffic Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Link Controller>= 13.0.0, <= 13.1.0.7
F5Big-Ip Local Traffic Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Policy Enforcement Manager>= 13.0.0, <= 13.1.0.7
F5Big-Ip Webaccelerator>= 13.0.0, <= 13.1.0.7
F5Big-Ip Websafe>= 13.0.0, <= 13.1.0.7

Related Weaknesses (CWE)

CWE-772

References

FAQ

What is CVE-2018-5527?

CVE-2018-5527 is a vulnerability with a CVSS score of 7.5 (HIGH). On BIG-IP 13.1.0-13.1.0.7, a remote attacker using undisclosed methods against virtual servers configured with a Client SSL or Server SSL profile that has the SSL Forward Proxy feature enabled can for...

How severe is CVE-2018-5527?

CVE-2018-5527 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-5527?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager.