description: A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device.
This vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.
problem types: Out-of-bounds Write
affected:
{
vendor: Cisco
product: Cisco Session Initiation Protocol (SIP) Software
versions:
version: 9.3(4) 3rd Party, status: affected
version: 9.3(4)SR3 3rd Party, status: affected
version: 9.3(4)SR1 3rd Party, status: affected
version: 9.3(4)SR2 3rd Party, status: affected
version: 11.5(1), status: affected
version: 11.7(1), status: affected
version: 11.0(0.7) MPP, status: affected
version: 11.0(1) MPP, status: affected
version: 11.0(1), status: affected
version: 11.5(1)SR1, status: affected
version: 11-0-1MSR1-1, status: affected
version: 10.4(1) 3rd Party, status: affected
version: 10.3(1.11) 3rd Party, status: affected
version: 10.2(2), status: affected
version: 10.2(1)SR1, status: affected
version: 10.1(1.9), status: affected
version: 10.1(1)SR2, status: affected
version: 10.2(1), status: affected
version: 10.1(1)SR1, status: affected
version: 10.4(1)SR2 3rd Party, status: affected
version: 10.3(1), status: affected
version: 10.3(1)SR4b, status: affected
version: 10.3(1)SR5, status: affected
version: 10.3(1.9) 3rd Party, status: affected
version: 10.3(2), status: affected
version: 10.3(1)SR4, status: affected
version: 10.3(1)SR2, status: affected
version: 10.3(1)SR3, status: affected
version: 10.3(1)SR1, status: affected
version: 12.6(1), status: affected
version: 12.1(1), status: affected
version: 12.5(1)SR1, status: affected
version: 12.5(1)SR2, status: affected
version: 12.5(1), status: affected
version: 12.5(1)SR3, status: affected
version: 12.6(1)SR1, status: affected
version: 12.7(1), status: affected
version: 12.1(1)SR1, status: affected
version: 12.0(1), status: affected
version: 12.0(1)SR2, status: affected
version: 12.0(1)SR1, status: affected
version: 12.0(1)SR3, status: affected
version: 12.8(1), status: affected
version: 12.8(1)SR1, status: affected
version: 12.8(1)SR2, status: affected
version: 10.3(1)SR6, status: affected
version: 10.3(1)SR7, status: affected
version: 12.7(1)SR1, status: affected
version: 14.0(1)SR1, status: affected
version: 14.0(1), status: affected
version: 14.0(1)SR2, status: affected
version: 14.0(1)SR3, status: affected
version: 14.1(1), status: affected
version: 14.1(1)SR1, status: affected
}
metrics:
format: cvssV3_1
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
baseScore: 8.1
baseSeverity: HIGH
attackVector: ADJACENT_NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
]
exploits: The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory and that this vulnerability has been publicly discussed.
The Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory.