Uncontrolled Memory Allocation in Cisco Systems, Inc products - CVE-2022-20717

Vulnerability identifier: #VU62347

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-20717

CWE-ID: CWE-789

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient memory management when an affected device receives large amounts of traffic. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

1100 Series Integrated Services Routers
Cisco SD-WAN vEdge 100 Series Routers
Cisco SD-WAN vEdge 1000 Series Routers
Cisco SD-WAN vEdge 2000 Series Routers
Cisco SD-WAN vEdge 5000 Series Routers

Install updates from vendor's website.

1100 Series Integrated Services Routers - addressed in versions 20.6.1, 20.7.1
Cisco SD-WAN vEdge 100 Series Routers - addressed in versions 20.6.1, 20.7.1
Cisco SD-WAN vEdge 1000 Series Routers - addressed in versions 20.6.1, 20.7.1
Cisco SD-WAN vEdge 2000 Series Routers - addressed in versions 20.6.1, 20.7.1
Cisco SD-WAN vEdge 5000 Series Routers - addressed in versions 20.6.1, 20.7.1

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vedge-dos-jerVm4bB

• Denial of service in Cisco SD-WAN vEdge Routers