The Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side) to send arbitrary numbers that are actually not public keys, and trigger expensive server-side DHE modular-exponentiation calculations, aka a D(HE)at or D(HE)ater attack. The client needs very little CPU resources and network bandwidth. The attack may be more disruptive in cases where a client can require a server to select its largest supported key size. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE.
References
Configurations
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History
22 Aug 2025, 10:33
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:f5:f5os-a:1.3.0:*:*:*:*:*:*:* |
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_acceleration_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_webaccelerator:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_fraud_protection_service:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_local_traffic_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-a:1.8.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_security_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_domain_name_system:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_edge_gateway:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_carrier-grade_nat:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_firewall_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-a:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_global_traffic_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_websafe:17.5.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-c:1.8.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-c:1.8.1:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_link_controller:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_policy_enforcement_manager:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_analytics:17.5.0:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_ssl_orchestrator:17.5.0:*:*:*:*:*:*:* |
| References | () https://dheatattack.gitlab.io/ - Third Party Advisory | |
| References | () https://github.com/Balasys/dheater - Product, Third Party Advisory | |
| References | () https://gitlab.com/dheatattack/dheater - Third Party Advisory | |
| References | () https://ieeexplore.ieee.org/document/10374117 - Technical Description, Third Party Advisory | |
| References | () https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt - Third Party Advisory, Technical Description |
15 Apr 2025, 14:08
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:f5:f5os-c:*:*:*:*:*:*:*:* cpe:2.3:a:f5:f5os-a:1.3.0:*:*:*:*:*:*:* cpe:2.3:a:f5:f5os-c:1.5.1:*:*:*:*:*:*:* cpe:2.3:a:f5:f5os-a:1.3.1:*:*:*:*:*:*:* |
cpe:2.3:o:f5:f5os-c:1.5.1:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-c:1.5.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-a:1.3.1:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-a:1.3.0:*:*:*:*:*:*:* cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:* |
20 Nov 2024, 23:42
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf - Third Party Advisory | |
| References | () https://dheatattack.com - Third Party Advisory | |
| References | () https://dheatattack.gitlab.io/ - | |
| References | () https://github.com/Balasys/dheater - Product | |
| References | () https://github.com/mozilla/ssl-config-generator/issues/162 - Issue Tracking | |
| References | () https://gitlab.com/dheatattack/dheater - | |
| References | () https://ieeexplore.ieee.org/document/10374117 - | |
| References | () https://support.f5.com/csp/article/K83120834 - Third Party Advisory | |
| References | () https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt - Third Party Advisory | |
| References | () https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ - Third Party Advisory | |
| References | () https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ - Issue Tracking | |
| References | () https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol - Exploit, Technical Description | |
| References | () https://www.suse.com/support/kb/doc/?id=000020510 - Third Party Advisory |
23 Apr 2024, 07:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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11 Jan 2024, 03:15
| Type | Values Removed | Values Added |
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| References |
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Information
Published : 2021-11-11 19:15
Updated : 2025-08-22 10:33
NVD link : CVE-2002-20001
Mitre link : CVE-2002-20001
CVE.ORG link : CVE-2002-20001
JSON object : View
Products Affected
suse
- linux_enterprise_server
f5
- big-ip_webaccelerator
- big-iq_centralized_management
- big-ip_application_acceleration_manager
- f5os-c
- big-ip_local_traffic_manager
- big-ip_global_traffic_manager
- big-ip_fraud_protection_service
- big-ip_ssl_orchestrator
- big-ip_link_controller
- traffix_signaling_delivery_controller
- big-ip_application_security_manager
- big-ip_advanced_firewall_manager
- f5os-a
- big-ip_edge_gateway
- big-ip_ddos_hybrid_defender
- big-ip_analytics
- big-ip_application_visibility_and_reporting
- big-ip_advanced_web_application_firewall
- big-ip_access_policy_manager
- big-ip_service_proxy
- big-ip_domain_name_system
- big-ip_websafe
- big-ip_carrier-grade_nat
- big-ip_policy_enforcement_manager
hpe
- aruba_cx_8325-32c
- aruba_cx_6100
- aruba_cx_8400
- aruba_cx_6200m
- aruba_cx_6300m
- aruba_cx_6410
- aruba_cx_8360-48xt4c
- aruba_cx_6405
- aruba_cx_8360-12c
- aruba_cx_8360-16y2c
- aruba_cx_4100i
- aruba_cx_8360-32y4c
- aruba_cx_8320
- aruba_cx_8360-24xf2c
- aruba_cx_6200f
- aruba_cx_8360-48y6c
- aruba_cx_8325-48y8c
- arubaos-cx
- aruba_cx_6300f
stormshield
- stormshield_management_center
- stormshield_network_security
siemens
- scalance_w1750d_firmware
- scalance_w1750d
balasys
- dheater
CWE
CWE-400
Uncontrolled Resource Consumption