CVE-2022-20950

2022-11-1521:15:36

CWE-770

CWE-754

[email protected]

web.nvd.nist.gov

vulnerability

sip

snort 3

cisco

dos

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

0.001

Percentile

48.7%

JSON

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 configurations

Nvd

Node

ciscofirepower_threat_defenseMatch7.2.0

ciscofirepower_threat_defenseMatch7.2.0.1

VendorProductVersionCPE
ciscofirepower_threat_defense7.2.0cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:*:*:*:*:*:*:*
ciscofirepower_threat_defense7.2.0.1cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	firepower_threat_defense	7.2.0	cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:::::::*
cisco	firepower_threat_defense	7.2.0.1	cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:::::::*