high
7.5
CWE
20
Advisory Published
Updated

CVE-2021-23048: Input Validation

First published: Tue Sep 14 2021(Updated: )

On BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x and 11.6.x, when GPRS Tunneling Protocol (GTP) iRules commands or a GTP profile is configured on a virtual server, undisclosed GTP messages can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=11.6.1<=11.6.5
F5 Access Policy Manager>=12.1.0<=12.1.6
F5 Access Policy Manager>=13.1.0<13.1.4.1
F5 Access Policy Manager>=14.1.0<14.1.4.3
F5 Access Policy Manager>=15.1.0<15.1.3.1
F5 Access Policy Manager>=16.0.0<16.0.1.2
F5 BIG-IP Advanced Firewall Manager>=11.6.1<=11.6.5
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.6
F5 BIG-IP Advanced Firewall Manager>=13.1.0<13.1.4.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.4.3
F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.3.1
F5 BIG-IP Advanced Firewall Manager>=16.0.0<16.0.1.2
F5 BIG-IP Advanced WAF/ASM>=11.6.1<=11.6.5
F5 BIG-IP Advanced WAF/ASM>=12.1.0<=12.1.6
F5 BIG-IP Advanced WAF/ASM>=13.1.0<13.1.4.1
F5 BIG-IP Advanced WAF/ASM>=14.1.0<14.1.4.3
F5 BIG-IP Advanced WAF/ASM>=15.1.0<15.1.3.1
F5 BIG-IP Advanced WAF/ASM>=16.0.0<16.0.1.2
F5 BIG-IP Analytics>=11.6.1<=11.6.5
F5 BIG-IP Analytics>=12.1.0<=12.1.6
F5 BIG-IP Analytics>=13.1.0<13.1.4.1
F5 BIG-IP Analytics>=14.1.0<14.1.4.3
F5 BIG-IP Analytics>=15.1.0<15.1.3.1
F5 BIG-IP Analytics>=16.0.0<16.0.1.2
F5 BIG-IP Application Acceleration Manager>=11.6.1<=11.6.5
F5 BIG-IP Application Acceleration Manager>=12.1.0<=12.1.6
F5 BIG-IP Application Acceleration Manager>=13.1.0<13.1.4.1
F5 BIG-IP Application Acceleration Manager>=14.1.0<14.1.4.3
F5 BIG-IP Application Acceleration Manager>=15.1.0<15.1.3.1
F5 BIG-IP Application Acceleration Manager>=16.0.0<16.0.1.2
F5 Application Security Manager>=11.6.1<=11.6.5
F5 Application Security Manager>=12.1.0<=12.1.6
F5 Application Security Manager>=13.1.0<13.1.4.1
F5 Application Security Manager>=14.1.0<14.1.4.3
F5 Application Security Manager>=15.1.0<15.1.3.1
F5 Application Security Manager>=16.0.0<16.0.1.2
F5 BIG-IP>=11.6.1<=11.6.5
F5 BIG-IP>=12.1.0<=12.1.6
F5 BIG-IP>=13.1.0<13.1.4.1
F5 BIG-IP>=14.1.0<14.1.4.3
F5 BIG-IP>=15.1.0<15.1.3.1
F5 BIG-IP>=16.0.0<16.0.1.2
F5 BIG-IP Fraud Protection Service>=11.6.1<=11.6.5
F5 BIG-IP Fraud Protection Service>=12.1.0<=12.1.6
F5 BIG-IP Fraud Protection Service>=13.1.0<13.1.4.1
F5 BIG-IP Fraud Protection Service>=14.1.0<14.1.4.3
F5 BIG-IP Fraud Protection Service>=15.1.0<15.1.3.1
F5 BIG-IP Fraud Protection Service>=16.0.0<16.0.1.2
Riverbed SteelApp Traffic Manager>=11.6.1<=11.6.5
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.6
Riverbed SteelApp Traffic Manager>=13.1.0<13.1.4.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.4.3
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.3.1
Riverbed SteelApp Traffic Manager>=16.0.0<16.0.1.2
F5 BIG-IP Link Controller>=11.6.1<=11.6.5
F5 BIG-IP Link Controller>=12.1.0<=12.1.6
F5 BIG-IP Link Controller>=13.1.0<13.1.4.1
F5 BIG-IP Link Controller>=14.1.0<14.1.4.3
F5 BIG-IP Link Controller>=15.1.0<15.1.3.1
F5 BIG-IP Link Controller>=16.0.0<16.0.1.2
Riverbed SteelApp Traffic Manager>=11.6.1<=11.6.5
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.6
Riverbed SteelApp Traffic Manager>=13.1.0<13.1.4.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.4.3
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.3.1
Riverbed SteelApp Traffic Manager>=16.0.0<16.0.1.2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-23048?

    CVE-2021-23048 has a high severity rating due to potential exploitation of the vulnerability in affected versions of F5 BIG-IP products.

  • How do I fix CVE-2021-23048?

    To fix CVE-2021-23048, upgrade to versions 16.0.1.2, 15.1.3.1, 14.1.4.3, 13.1.4.1, or higher as recommended by F5.

  • What products are affected by CVE-2021-23048?

    CVE-2021-23048 affects multiple F5 BIG-IP products including Access Policy Manager, Advanced Firewall Manager, and Application Security Manager among others.

  • Can CVE-2021-23048 be remotely exploited?

    Yes, CVE-2021-23048 can potentially be exploited remotely if the appropriate GTP iRules commands or profiles are in use.

  • What versions are vulnerable in CVE-2021-23048?

    Vulnerable versions include 16.0.x before 16.0.1.2 and all versions of 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x.

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