CVE-2018-15454

A vulnerability in the Session Initiation Protocol (SIP) inspection engine 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 or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
ciscoCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
VendorProductVersion
ciscoadaptive_security_appliance_software
9.4 ≤
𝑥
< 9.4.4.27
ciscoadaptive_security_appliance_software
9.6 ≤
𝑥
< 9.6.4.18
ciscoadaptive_security_appliance_software
9.8 ≤
𝑥
< 9.8.3.16
ciscoadaptive_security_appliance_software
9.9 ≤
𝑥
< 9.9.2.32
ciscoadaptive_security_appliance_software
9.10 ≤
𝑥
< 9.10.1.2
ciscofirepower_threat_defense
6.1.0 ≤
𝑥
< 6.1.0.7
ciscofirepower_threat_defense
6.2.0 ≤
𝑥
< 6.2.0.6
ciscofirepower_threat_defense
6.2.2 ≤
𝑥
< 6.2.2.4
ciscofirepower_threat_defense
6.2.3 ≤
𝑥
< 6.2.3.7
𝑥
= Vulnerable software versions