cisco-sa-20181003-asa-dma-dos: Cisco Adaptive Security Appliance Direct Memory Access Denial of Service Vulnerability

First published: Wed Oct 03 2018(Updated: )

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://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dos

Affected Software	Affected Version	How to fix
Cisco ASA Software	>=9.7=9.8<=9.9<9.9.2.18=9.6<9.6.4.14=9.5<Migrate to 9.6.4.14=9.4<9.4.4.22=9.3<Migrate to 9.4.4.22	9.9.2.18 9.6.4.14 Migrate to 9.6.4.14 9.4.4.22 Migrate to 9.4.4.22
Cisco FTD Software

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Reference Links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dos (Advisory)

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2018-15383

agent/type
agent/softwarecombine
agent/first-publish-date
agent/last-modified-date
collector/cisco-advisory
source/Cisco
agent/software-canonical-lookup
agent/references
agent/title
agent/severity
agent/weakness
agent/tags
agent/description
agent/event
vendor/cisco
canonical/cisco asa software
version/cisco asa software/9.7
version/cisco asa software/9.8
version/cisco asa software/9.9
version/cisco asa software/9.6
version/cisco asa software/9.5
version/cisco asa software/9.4
version/cisco asa software/9.3
canonical/cisco ftd software

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