high
7.8
CWE
770 400
Advisory Published
Updated

CVE-2018-15383: Cisco Adaptive Security Appliance Direct Memory Access Denial of Service Vulnerability

First published: Fri Oct 05 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.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Threat Defense=6.0
Cisco Firepower Threat Defense=6.0.1
Cisco Firepower Threat Defense=6.1.0
Cisco Firepower Threat Defense=6.2.0
Cisco Firepower Threat Defense=6.2.2
Cisco Firepower Threat Defense=6.2.3
Cisco Adaptive Security Appliance=9.3
Cisco Adaptive Security Appliance=9.4
Cisco Adaptive Security Appliance Software=9.5
Cisco Adaptive Security Appliance Software=9.6
Cisco Adaptive Security Appliance Software=9.6\(43\)
Cisco Adaptive Security Appliance Software=9.7
Cisco Adaptive Security Appliance Software=9.8
Cisco Adaptive Security Appliance Software=9.9
Cisco Adaptive Security Appliance Software=9.9\(28\)
Cisco Adaptive Security Appliance Software=9.3
Cisco Adaptive Security Appliance Software=9.4

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-15383?

    CVE-2018-15383 is rated as high severity due to its potential to cause system reloads.

  • How do I fix CVE-2018-15383?

    To mitigate CVE-2018-15383, update Cisco Adaptive Security Appliance Software or Cisco Firepower Threat Defense Software to the latest patched versions.

  • What products are affected by CVE-2018-15383?

    CVE-2018-15383 affects specific versions of Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software.

  • Can CVE-2018-15383 be exploited remotely?

    Yes, CVE-2018-15383 can be exploited by unauthenticated remote attackers.

  • What are the consequences of an exploit of CVE-2018-15383?

    Exploitation of CVE-2018-15383 can lead to a denial of service condition by causing the affected device to reload.

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