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CVE-2018-5507

UnknownEPSS 1.11%

Last modified

CVE-2018-5507 is a vulnerability of currently unknown severity. On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU.

Metrics

EPSS Probability
1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Local Traffic Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Local Traffic Manager13.0.0
F5Big-Ip Application Acceleration Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Application Acceleration Manager13.0.0
F5Big-Ip Advanced Firewall Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Advanced Firewall Manager13.0.0
F5Big-Ip Analytics>= 11.5.1, <= 11.5.5
F5Big-Ip Analytics>= 11.6.1, <= 11.6.2
F5Big-Ip Analytics>= 12.1.0, <= 12.1.3
F5Big-Ip Analytics13.0.0
F5Big-Ip Access Policy Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Access Policy Manager13.0.0
F5Big-Ip Application Security Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Application Security Manager13.0.0
F5Big-Ip Edge Gateway>= 11.5.1, <= 11.5.5
F5Big-Ip Edge Gateway>= 11.6.1, <= 11.6.2
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.3
F5Big-Ip Edge Gateway13.0.0
F5Big-Ip Global Traffic Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Global Traffic Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Global Traffic Manager13.0.0
F5Big-Ip Link Controller>= 11.5.1, <= 11.5.5
F5Big-Ip Link Controller>= 11.6.1, <= 11.6.2
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.3
F5Big-Ip Link Controller13.0.0
F5Big-Ip Policy Enforcement Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Policy Enforcement Manager>= 11.6.1, <= 11.6.2
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.3
F5Big-Ip Policy Enforcement Manager13.0.0
F5Big-Ip Webaccelerator>= 11.5.1, <= 11.5.5
F5Big-Ip Webaccelerator>= 11.6.1, <= 11.6.2
F5Big-Ip Webaccelerator>= 12.1.0, <= 12.1.3
F5Big-Ip Webaccelerator13.0.0
F5Big-Ip Websafe>= 11.5.1, <= 11.5.5
F5Big-Ip Websafe>= 11.6.1, <= 11.6.2
F5Big-Ip Websafe>= 12.1.0, <= 12.1.3
F5Big-Ip Websafe13.0.0
F5Big-Ip Domain Name System>= 11.5.1, <= 11.5.5
F5Big-Ip Domain Name System>= 11.6.1, <= 11.6.2

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-2018-5507?
On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU.
How severe is CVE-2018-5507?
Severity scoring for CVE-2018-5507 is pending analysis. The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5507?
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