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CVE-2018-5532

UnknownEPSS 1.17%

Last modified

CVE-2018-5532 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.17%

63.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Local Traffic Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Local Traffic Manager13.0.0
F5Big-Ip Application Acceleration Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Application Acceleration Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Application Acceleration Manager13.0.0
F5Big-Ip Advanced Firewall Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Advanced Firewall Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Advanced Firewall Manager13.0.0
F5Big-Ip Analytics>= 11.2.1, <= 11.5.6
F5Big-Ip Analytics>= 11.6.0, <= 11.6.3.1
F5Big-Ip Analytics>= 12.1.0, <= 12.1.2
F5Big-Ip Analytics13.0.0
F5Big-Ip Access Policy Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Access Policy Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Access Policy Manager13.0.0
F5Big-Ip Application Security Manager>= 10.1.0, <= 11.5.6
F5Big-Ip Application Security Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Application Security Manager13.0.0
F5Big-Ip Domain Name System>= 11.2.1, <= 11.5.6
F5Big-Ip Domain Name System>= 11.6.0, <= 11.6.3.1
F5Big-Ip Domain Name System>= 12.1.0, <= 12.1.2
F5Big-Ip Domain Name System13.0.0
F5Big-Ip Edge Gateway>= 11.2.1, <= 11.5.6
F5Big-Ip Edge Gateway>= 11.6.0, <= 11.6.3.1
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.2
F5Big-Ip Edge Gateway13.0.0
F5Big-Ip Fraud Protection Service>= 11.2.1, <= 11.5.6
F5Big-Ip Fraud Protection Service>= 11.6.0, <= 11.6.3.1
F5Big-Ip Fraud Protection Service>= 12.1.0, <= 12.1.2
F5Big-Ip Fraud Protection Service13.0.0
F5Big-Ip Global Traffic Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Global Traffic Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Global Traffic Manager13.0.0
F5Big-Ip Link Controller>= 11.2.1, <= 11.5.6
F5Big-Ip Link Controller>= 11.6.0, <= 11.6.3.1
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.2
F5Big-Ip Link Controller13.0.0
F5Big-Ip Policy Enforcement Manager>= 11.2.1, <= 11.5.6
F5Big-Ip Policy Enforcement Manager>= 11.6.0, <= 11.6.3.1
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.2
F5Big-Ip Policy Enforcement Manager13.0.0
F5Big-Ip Webaccelerator>= 11.2.1, <= 11.5.6
F5Big-Ip Webaccelerator>= 11.6.0, <= 11.6.3.1

Showing 50 of 52 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 record, if the DNS Cache is receiving a stream of requests for the cached name.
How severe is CVE-2018-5532?
Severity scoring for CVE-2018-5532 is pending analysis. The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5532?
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