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MEDIUM · 5.3

CVE-2018-5532

On F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 a domain name cached within the DNS Cache of TMM may continue to be resolved by the cache even after the parent server revokes the...

Vulnerability Description

On F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 a domain name cached within the DNS Cache of TMM may continue to be resolved by the cache even after the parent server revokes the record, if the DNS Cache is receiving a stream of requests for the cached name.

CVSS Score

5.3

MEDIUM

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

Affected Products

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Application Acceleration Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Advanced Firewall Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Analytics>= 11.2.1, <= 11.5.6
F5Big-Ip Access Policy Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Application Security Manager>= 10.1.0, <= 11.5.6
F5Big-Ip Domain Name System>= 11.2.1, <= 11.5.6
F5Big-Ip Edge Gateway>= 11.2.1, <= 11.5.6
F5Big-Ip Fraud Protection Service>= 11.2.1, <= 11.5.6
F5Big-Ip Global Traffic Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Link Controller>= 11.2.1, <= 11.5.6
F5Big-Ip Policy Enforcement Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Webaccelerator>= 11.2.1, <= 11.5.6

References

FAQ

What is CVE-2018-5532?

CVE-2018-5532 is a vulnerability with a CVSS score of 5.3 (MEDIUM). On F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 a domain name cached within the DNS Cache of TMM may continue to be resolved by the cache even after the parent server revokes the...

How severe is CVE-2018-5532?

CVE-2018-5532 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-5532?

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