Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-23049

Severity CVSS v4.0:
Pending analysis
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
14/09/2021
Last modified:
24/09/2021

Description

On BIG-IP version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3, when the iRules RESOLVER::summarize command is used on a virtual server, undisclosed requests can cause an increase in Traffic Management Microkernel (TMM) memory utilization resulting in an out-of-memory condition and a denial-of-service (DoS). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 16.0.0 (including) 16.0.1.2 (excluding)
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 15.1.0 (including) 15.1.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools