medium
5.9
CWE
400
Advisory Published
Updated

CVE-2018-5500

First published: Wed Feb 28 2018(Updated: )

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.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Big-ip Local Traffic Manager>=11.6.1<=11.6.2
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.3.1
F5 Big-ip Local Traffic Manager=13.0.0
F5 Big-ip Application Acceleration Manager>=11.6.1<=11.6.2
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.3.1
F5 Big-ip Application Acceleration Manager=13.0.0
F5 BIG-IP Advanced Firewall Manager>=11.6.1<=11.6.2
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Advanced Firewall Manager=13.0.0
F5 BIG-IP Analytics>=11.6.1<=11.6.2
F5 BIG-IP Analytics>=12.1.0<=12.1.3.1
F5 BIG-IP Analytics=13.0.0
F5 BIG-IP Access Policy Manager>=11.6.1<=11.6.2
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Access Policy Manager=13.0.0
F5 BIG-IP Application Security Manager>=11.6.1<=11.6.2
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Application Security Manager=13.0.0
F5 Big-ip Dns>=11.6.1<=11.6.2
F5 Big-ip Dns>=12.1.0<=12.1.3.1
F5 Big-ip Dns=13.0.0
F5 Big-ip Link Controller>=11.6.1<=11.6.2
F5 Big-ip Link Controller>=12.1.0<=12.1.3.1
F5 Big-ip Link Controller=13.0.0
F5 Big-ip Policy Enforcement Manager>=11.6.1<=11.6.2
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.3.1
F5 Big-ip Policy Enforcement Manager=13.0.0
F5 Big-ip Websafe>=11.6.1<=11.6.2
F5 Big-ip Websafe>=12.1.0<=12.1.3.1
F5 Big-ip Websafe=13.0.0
F5 Big-ip Edge Gateway>=11.6.1<=11.6.2
F5 Big-ip Edge Gateway>=12.1.0<=12.1.3.1
F5 Big-ip Edge Gateway=13.0.0
F5 Big-ip Global Traffic Manager>=11.6.1<=11.6.2
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.3.1
F5 Big-ip Global Traffic Manager=13.0.0
F5 Big-ip Webaccelerator>=11.6.1<=11.6.2
F5 Big-ip Webaccelerator>=12.1.0<=12.1.3.1
F5 Big-ip Webaccelerator=13.0.0

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Reference Links

Frequently Asked Questions

  • What is CVE-2018-5500?

    CVE-2018-5500 is a vulnerability found in F5 BIG-IP systems that leaks a small amount of memory through every Multipath TCP (MCTCP) connection established.

  • What software is affected by CVE-2018-5500?

    F5 BIG-IP systems running versions 11.6.1 - 11.6.2, 12.1.0 - 12.1.3.1, and 13.0.0 are affected by CVE-2018-5500.

  • How severe is the CVE-2018-5500 vulnerability?

    The severity of CVE-2018-5500 is rated as medium with a severity value of 5.9.

  • How do I fix CVE-2018-5500?

    To fix CVE-2018-5500, users should upgrade their F5 BIG-IP systems to a version that is not affected by the vulnerability.

  • Where can I find more information about CVE-2018-5500?

    More information about CVE-2018-5500 can be found at the following references: http://www.securityfocus.com/bid/103217 and https://support.f5.com/csp/article/K33211839

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