CVE Vulnerabilities

CVE-2020-5926

Improper Resource Shutdown or Release

Published: Aug 26, 2020 | Modified: Sep 02, 2020
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, and 14.1.0-14.1.2.6, a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile, parsing SIP messages that contain a multi-part MIME payload with certain boundary strings can cause TMM to free memory to the wrong cache.

Weakness

The product does not release or incorrectly releases a resource before it is made available for re-use.

Affected Software

Name Vendor Start Version End Version
Big-ip_access_policy_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_access_policy_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_access_policy_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_advanced_firewall_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_advanced_firewall_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_advanced_firewall_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_analytics F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_analytics F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_analytics F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_application_acceleration_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_application_acceleration_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_application_acceleration_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_application_security_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_application_security_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_application_security_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_domain_name_system F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_domain_name_system F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_domain_name_system F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_fraud_protection_service F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_fraud_protection_service F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_fraud_protection_service F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_global_traffic_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_global_traffic_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_global_traffic_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_link_controller F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_link_controller F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_link_controller F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_local_traffic_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_local_traffic_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_local_traffic_manager F5 15.1.0 (including) 15.1.0.5 (excluding)
Big-ip_policy_enforcement_manager F5 14.1.0 (including) 14.1.2.7 (excluding)
Big-ip_policy_enforcement_manager F5 15.0.0 (including) 15.0.1.4 (excluding)
Big-ip_policy_enforcement_manager F5 15.1.0 (including) 15.1.0.5 (excluding)

Potential Mitigations

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.

References