CVE-2017-3793Uncontrolled Resource Consumption in Cisco Adaptive Security Appliance Software

Severity
4.0MEDIUMNVD
EPSS
0.4%
top 38.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 20
Latest updateMay 13

Description

A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (8.0 through 8.7 and 9.0 through 9.6) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause Cisco ASA and FTD to drop any further incoming traffic on all interfaces, resulting in a denial of service (DoS) condition. The vulnerability is due to improper limitation of the global out-of-order TCP queue for specific block sizes. An attacker could exploit this

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:LExploitability: 2.2 | Impact: 1.4

Affected Packages1 packages

🔴Vulnerability Details

2
GHSA
GHSA-4p4v-vxhg-4mmr: A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (82022-05-13
CVEList
CVE-2017-3793: A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (82017-04-20

📋Vendor Advisories

1
Cisco
Cisco ASA Software and Cisco FTD Software TCP Normalizer Denial of Service Vulnerability2017-04-19
CVE-2017-3793 — Uncontrolled Resource Consumption | cvebase