Resource exhaustion in Cisco Adaptive Security Appliance Software
CVE-2018-15383
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Cisco Adaptive Security Appliance Software — versions 9.8, 9.9(28), 9.9\(28\)
- Cisco Adaptive Security Appliance (Asa) Software
- Cisco Firepower Threat Defense — versions 6.0, 6.0.1, 6.1.0
- Cisco Secure Firewall Threat Defense — versions 6.0.1, 6.1.0, 6.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1041787 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-15383?
- CVE-2018-15383 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-10-05.
- How severe is CVE-2018-15383?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-15383 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.