description: Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device and cause the LLDP service to restart.
These vulnerabilities are due to missing length validation of certain LLDP packet header fields. An attacker could exploit these vulnerabilities by sending a malicious LLDP packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause LLDP to restart unexpectedly, resulting in a denial of service (DoS) condition.
problem types: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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.