VulnerabilityModified

CVE-2018-15383

HIGH 7.5EPSS 2.49%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 2.49% probability · 84th percentile
CISA KEV: Not listed
Weakness: CWE-400, CWE-770
Affected: cisco/firepower threat defense · cisco/secure firewall threat defense · cisco/adaptive security appliance software
Source: psirt@cisco.com

References

http://www.securitytracker.com/id/1041787Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dosVendor Advisory
http://www.securitytracker.com/id/1041787Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-dma-dosVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.