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Vulnerability DatabaseCVE-2021-23007

CVE-2021-23007: 
F5 BIG-IP Advanced Firewall Manager vulnerability analysis and mitigation

Overview

CVE-2021-23007 affects BIG-IP versions 14.1.4 and 16.0.1.1. The vulnerability was discovered in the Traffic Management Microkernel (TMM) process, where handling certain undisclosed traffic can lead to the system dropping all fragmented IP traffic. The vulnerability was disclosed on March 31, 2021 (NVD, CVE).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 5.3 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. The CVSS v2.0 Base Score is 5.0 (MEDIUM) with vector (AV:N/AC:L/Au:N/C:N/I:N/A:P) (NVD).

Impact

When exploited, this vulnerability causes the BIG-IP system to drop all fragmented IP traffic, potentially leading to a denial of service condition for legitimate network traffic that requires IP fragmentation (CVE).

Mitigation and workarounds

F5 has released patches to address this vulnerability. Affected customers should upgrade to the appropriate hotfix versions: Hotfix-BIGIP-14.1.4.0.120.11-ENG for version 14.x and Hotfix-BIGIP-16.0.1.1.9.6-ENG for version 16.x (CERT-FR).

Additional resources

Source: This report was generated using AI

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