description: Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause Cisco Discovery Protocol memory corruption on an affected device.
These vulnerabilities are due to missing length validation checks when processing Cisco Discovery Protocol messages. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read of the valid Cisco Discovery Protocol packet data, which could allow the attacker to cause corruption in the internal Cisco Discovery Protocol database of the affected device.
problem types: Improper Handling of Length Parameter Inconsistency
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: 1.1.2, 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.