==================================================================== CERT-Renater Note d'Information No. 2018/VULN313 _____________________________________________________________________ DATE : 03/10/2018 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Cisco Adaptive Security Appliance (ASA) Software, Cisco Firepower Threat Defense (FTD) Software. ===================================================================== https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dos _____________________________________________________________________ Cisco Security Advisory: Cisco Adaptive Security Appliance Direct Memory Access Denial of Service Vulnerability Advisory ID: cisco-sa-20181003-asa-dma-dos Revision: 1.0 For Public Release: 2018 October 3 16:00 GMT Last Updated: 2018 October 3 16:00 GMT CVE ID(s): CVE-2018-15383 CVSS Score v(3): 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H +--------------------------------------------------------------------- Summary ======= A vulnerability in the cryptographic hardware accelerator driver of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a temporary denial of service (DoS) condition. The vulnerability exists because the affected devices have a limited amount of Direct Memory Access (DMA) memory and the affected software improperly handles resources in low-memory conditions. An attacker could exploit this vulnerability by sending a sustained, high rate of malicious traffic to an affected device to exhaust memory on the device. A successful exploit could allow the attacker to exhaust DMA memory on the affected device, which could cause the device to reload and result in a temporary DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dos ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dos"] ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================