CVE-2022-20950
Assigner: cisco
Published: 2022-11-10T17:32:32.127Z
State: PUBLISHED
descriptions: value: A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart.
 This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.
affected: vendor: Cisco
product: Cisco Firepower Threat Defense Software
versions: version: 7.2.0
status: affected
version: 7.2.0.1
status: affected
problemTypes: descriptions: description: Allocation of Resources Without Limits or Throttling
type: cwe
cweId: CWE-770
metrics: format: cvssV3_1
cvssV3_1: version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
baseScore: 5.8
baseSeverity: MEDIUM
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
exploits: value: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
source: advisory: cisco-sa-ftdsnort3sip-dos-A4cHeArC
discovery: EXTERNAL
defects: CSCwb99509