Input validation error in Cisco Systems, Inc products - CVE-2022-20688
Published: October 6, 2022
Vulnerability identifier: #VU67962
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-2022-20688
CWE-ID: CWE-20
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 missing length validation of certain Cisco Discovery Protocol packet header fields. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
ATA 190 Analog Telephone Adapter
ATA 191 Analog Telephone Adapter
ATA 192 Multiplatform Analog Telephone Adapter
ATA 191 Multiplatform Analog Telephone Adapter
ATA 191 Analog Telephone Adapter
ATA 192 Multiplatform Analog Telephone Adapter
ATA 191 Multiplatform Analog Telephone Adapter
How to mitigate CVE-2022-20688
Install updates from vendor's website.
ATA 191 Analog Telephone Adapter - update to 12.0(1)SR5
ATA 192 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 191 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 192 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 191 Multiplatform Analog Telephone Adapter - update to 11.2.2