7.8
Advisory Published
Updated

CVE-2020-5933

First published: Thu Oct 29 2020(Updated: )

On versions 15.1.0-15.1.0.5, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, when a BIG-IP system that has a virtual server configured with an HTTP compression profile processes compressed HTTP message payloads that require deflation, a Slowloris-style attack can trigger an out-of-memory condition on the BIG-IP system.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=11.6.1<11.6.5.2
F5 Access Policy Manager>=12.1.0<12.1.5.2
F5 Access Policy Manager>=13.1.0<=13.1.3.4
F5 Access Policy Manager>=14.1.0<14.1.2.4
F5 Access Policy Manager>=15.1.0<15.1.1
F5 BIG-IP Advanced Firewall Manager>=11.6.1<11.6.5.2
F5 BIG-IP Advanced Firewall Manager>=12.1.0<12.1.5.2
F5 BIG-IP Advanced Firewall Manager>=13.1.0<=13.1.3.4
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.2.4
F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.1
F5 BIG-IP Analytics>=11.6.1<11.6.5.2
F5 BIG-IP Analytics>=12.1.0<12.1.5.2
F5 BIG-IP Analytics>=13.1.0<=13.1.3.4
F5 BIG-IP Analytics>=14.1.0<14.1.2.4
F5 BIG-IP Analytics>=15.1.0<15.1.1
F5 BIG-IP Application Acceleration Manager>=11.6.1<11.6.5.2
F5 BIG-IP Application Acceleration Manager>=12.1.0<12.1.5.2
F5 BIG-IP Application Acceleration Manager>=13.1.0<=13.1.3.4
F5 BIG-IP Application Acceleration Manager>=14.1.0<14.1.2.4
F5 BIG-IP Application Acceleration Manager>=15.1.0<15.1.1
F5 Application Security Manager>=11.6.1<11.6.5.2
F5 Application Security Manager>=12.1.0<12.1.5.2
F5 Application Security Manager>=13.1.0<=13.1.3.4
F5 Application Security Manager>=14.1.0<14.1.2.4
F5 Application Security Manager>=15.1.0<15.1.1
F5 BIG-IP>=11.6.1<11.6.5.2
F5 BIG-IP>=12.1.0<12.1.5.2
F5 BIG-IP>=13.1.0<=13.1.3.4
F5 BIG-IP>=14.1.0<14.1.2.4
F5 BIG-IP>=15.1.0<15.1.1
F5 BIG-IP Fraud Protection Service>=11.6.1<11.6.5.2
F5 BIG-IP Fraud Protection Service>=12.1.0<12.1.5.2
F5 BIG-IP Fraud Protection Service>=13.1.0<=13.1.3.4
F5 BIG-IP Fraud Protection Service>=14.1.0<14.1.2.4
F5 BIG-IP Fraud Protection Service>=15.1.0<15.1.1
Riverbed SteelApp Traffic Manager>=11.6.1<11.6.5.2
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5.2
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3.4
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.4
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.1
F5 BIG-IP Link Controller>=11.6.1<11.6.5.2
F5 BIG-IP Link Controller>=12.1.0<12.1.5.2
F5 BIG-IP Link Controller>=13.1.0<=13.1.3.4
F5 BIG-IP Link Controller>=14.1.0<14.1.2.4
F5 BIG-IP Link Controller>=15.1.0<15.1.1
Riverbed SteelApp Traffic Manager>=11.5.2<11.6.5.2
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5.2
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3.4
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.4
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.1
F5 BIG-IP Policy Enforcement Manager>=11.6.1<11.6.5.2
F5 BIG-IP Policy Enforcement Manager>=12.1.0<12.1.5.2
F5 BIG-IP Policy Enforcement Manager>=13.1.0<=13.1.3.4
F5 BIG-IP Policy Enforcement Manager>=14.1.0<14.1.2.4
F5 BIG-IP Policy Enforcement Manager>=15.1.0<15.1.1

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Frequently Asked Questions

  • What is the severity of CVE-2020-5933?

    CVE-2020-5933 has been rated as critical due to its potential for a Slowloris-style denial of service attack.

  • How do I fix CVE-2020-5933?

    To fix CVE-2020-5933, upgrade to a patched version of F5 BIG-IP software outside the affected version ranges mentioned in the vulnerability.

  • Which F5 BIG-IP versions are affected by CVE-2020-5933?

    CVE-2020-5933 affects F5 BIG-IP versions from 11.6.1 to 15.1.0.5 across multiple management modules.

  • What is the impact of exploiting CVE-2020-5933?

    Exploiting CVE-2020-5933 can lead to a denial of service, making the affected F5 BIG-IP service unavailable.

  • Is there a workaround for CVE-2020-5933?

    A potential workaround for CVE-2020-5933 includes disabling HTTP compression on the affected virtual servers until the system can be patched.

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