description: A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device.
This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart.
Cisco has released firmware updates that address this vulnerability.
problem types: Uncontrolled Resource Consumption
affected:
{
vendor: Cisco
product: Cisco Analog Telephone Adaptor (ATA) Software
versions:
version: 1.2.1, status: affected
version: 1.2.2 SR1, status: affected
version: 1.2.2, status: affected
version: 1.2.2 SR2, status: affected
version: 11.1.0 MSR4, status: affected
version: 11.1.0, status: affected
version: 11.1.0 MSR1, status: affected
version: 11.1.0 MSR2, status: affected
version: 11.1.0 MSR3, status: affected
version: 1.1.0, status: affected
version: 1.1.1, status: affected
version: 1.1(4), status: affected
version: 1.1.2, status: affected
version: 2.1(6), status: affected
version: 2.1(5), status: affected
version: 2.16(2), status: affected
version: 2.16(1), status: affected
version: 3.2(0), status: affected
version: 3.2(4), status: affected
version: 3.2(3), status: affected
version: 3.2(1), status: affected
version: 2.15, status: affected
version: 2.14, status: affected
version: 1.34, status: affected
version: 1.0(0), status: affected
version: 3.1(1), status: affected
version: 3.1(0), status: affected
version: 3.1(2), status: affected
version: 3.0(0), status: affected
version: 9.2(3), status: affected
version: 9.2(1), status: affected
version: 9.0(3), status: affected
version: 12.0.1 SR2, status: affected
version: 12.0.1, status: affected
version: 12.0.1 SR1, status: affected
version: 12.0.1 SR3, status: affected
version: 12.0.1 SR4, status: affected
version: 11.2.1, status: affected
}
metrics:
format: cvssV3_1
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
baseScore: 5.3
baseSeverity: MEDIUM
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
]
exploits: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.