F5 Networks BIG-IP : TMM vulnerability (K92002212)

high Nessus Plugin ID 132578

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

Traffic Management Microkernel (TMM) may restart on BIG-IP Virtual Edition (VE) when using virtio direct descriptors and packets 2 KB or larger. (CVE-2019-6676)

Impact

Some virtio backend implementations send large packets (2 KB or larger) even when Large Offload Receive (LRO) is disabled. If the backend uses direct descriptors, this combination might cause Traffic Management Microkernel (TMM) to generate a core file and restart. The standard KVM implementation of virtio does not have this behavior.

This issue affects only BIG-IP VE systems. BIG-IP hardware platforms do not use the virtio subsystem.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K92002212.

Plugin Details

Severity: High

ID: 132578

File Name: f5_bigip_SOL92002212.nasl

Version: 1.4

Type: local

Family: F5 Networks Local Security Checks

Published: 12/31/2019

Updated: 11/3/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2019-6676

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_domain_name_system, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 12/20/2019

Vulnerability Publication Date: 12/23/2019

Reference Information

CVE: CVE-2019-6676

Detections

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