Denial of service in F5 TMM GTP



Published: 2021-08-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-23048
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		BIG-IP
Hardware solutions / Firmware

Vendor F5 Networks

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU56158

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-23048

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when GPRS Tunneling Protocol (GTP) iRules commands or a GTP profile is configured on a virtual server. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 - 16.0.1

Fixed software versions

CPE2.3 External links

http://support.f5.com/csp/article/K19012930


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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