Heap Inspection in Sourcefire products - CVE-2022-20922
Published: November 11, 2022
Vulnerability identifier: #VU69244
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20922
CWE-ID: CWE-244
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of system resources in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Umbrella Secure Internet Gateway
FirePOWER Services
Cyber Vision
Cisco Firewall Threat Defense (FTD)
Meraki MX Security Appliances
Snort
FirePOWER Services
Cyber Vision
Cisco Firewall Threat Defense (FTD)
Meraki MX Security Appliances
Snort
How to mitigate CVE-2022-20922
Install updates from vendor's website.
Cyber Vision - update to 4.1.2
Snort - update to 3.1.31.0
Snort - update to 3.1.31.0