==================================================================== CERT-Renater Note d'Information No. 2018/VULN316 _____________________________________________________________________ DATE : 03/10/2018 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Cisco Firepower Threat Defense (FTD) Software versions prior to 6.2.3.4. ===================================================================== https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-ftd-inspect-dos _____________________________________________________________________ Cisco Security Advisory: Cisco Firepower Threat Defense Software FTP Inspection Denial of Service Vulnerability Advisory ID: cisco-sa-20181003-ftd-inspect-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-2018-15390 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 FTP inspection engine of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software fails to release spinlocks when a device is running low on system memory, if the software is configured to apply FTP inspection and an access control rule to transit traffic, and the access control rule is associated with an FTP file policy. An attacker could exploit this vulnerability by sending a high rate of transit traffic through an affected device to cause a low-memory condition on the device. A successful exploit could allow the attacker to cause a software panic 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-ftd-inspect-dos ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-ftd-inspect-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 + =========================================================