CVE Vulnerabilities

CVE-2025-21091

Missing Release of Memory after Effective Lifetime

Published: Feb 05, 2025 | Modified: Oct 21, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

When SNMP v1 or v2c are disabled on the BIG-IP, undisclosed requests can cause an increase in memory resource utilization.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Weakness

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Software

Name Vendor Start Version End Version
Big-ip_access_policy_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_advanced_firewall_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_advanced_web_application_firewall F5 15.1.0 (including) 15.1.10 (including)
Big-ip_analytics F5 15.1.0 (including) 15.1.10 (including)
Big-ip_application_acceleration_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_application_security_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_application_visibility_and_reporting F5 15.1.0 (including) 15.1.10 (including)
Big-ip_automation_toolchain F5 15.1.0 (including) 15.1.10 (including)
Big-ip_carrier-grade_nat F5 15.1.0 (including) 15.1.10 (including)
Big-ip_container_ingress_services F5 15.1.0 (including) 15.1.10 (including)
Big-ip_ddos_hybrid_defender F5 15.1.0 (including) 15.1.10 (including)
Big-ip_domain_name_system F5 15.1.0 (including) 15.1.10 (including)
Big-ip_edge_gateway F5 15.1.0 (including) 15.1.10 (including)
Big-ip_fraud_protection_service F5 15.1.0 (including) 15.1.10 (including)
Big-ip_global_traffic_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_link_controller F5 15.1.0 (including) 15.1.10 (including)
Big-ip_local_traffic_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_policy_enforcement_manager F5 15.1.0 (including) 15.1.10 (including)
Big-ip_ssl_orchestrator F5 15.1.0 (including) 15.1.10 (including)
Big-ip_webaccelerator F5 15.1.0 (including) 15.1.10 (including)
Big-ip_websafe F5 15.1.0 (including) 15.1.10 (including)

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References