Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2022-20943 |
CWE-ID | CWE-244 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cyber Vision Client/Desktop applications / Antivirus software/Personal firewalls FirePOWER Services Client/Desktop applications / Antivirus software/Personal firewalls Umbrella Secure Internet Gateway Client/Desktop applications / Antivirus software/Personal firewalls Meraki MX Security Appliances Other software / Other software solutions Cisco Firepower Threat Defense (FTD) Hardware solutions / Security hardware applicances |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU69245
Risk: Medium
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-20943
CWE-ID:
CWE-244 - Improper Clearing of Heap Memory Before Release ('Heap Inspection')
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCyber Vision: 3.0 - 4.1
Meraki MX Security Appliances: MX15 - MX18
FirePOWER Services: All versions
Cisco Firepower Threat Defense (FTD): All versions
Umbrella Secure Internet Gateway: All versions
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-smb-3nfhJtr
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.