#VU67963 Out-of-bounds read in Cisco Systems, Inc products - CVE-2022-20689

Vulnerability identifier: #VU67963

Vulnerability risk: Medium

CVSSv4.0: 2.7 [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/E:U/U:Green]

CVE-ID: CVE-2022-20689

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ATA 190 Analog Telephone Adapter
Hardware solutions / Routers & switches, VoIP, GSM, etc
ATA 191 Analog Telephone Adapter
Hardware solutions / Routers & switches, VoIP, GSM, etc
ATA 192 Multiplatform Analog Telephone Adapter
Hardware solutions / Routers & switches, VoIP, GSM, etc
ATA 191 Multiplatform Analog Telephone Adapter
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a boundary condition in the Cisco Discovery Protocol functionality. A remote attacker can cause corruption in the internal Cisco Discovery Protocol database of the target device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ATA 190 Analog Telephone Adapter : All versions

ATA 191 Analog Telephone Adapter : 12.0(1)SR4

ATA 192 Multiplatform Analog Telephone Adapter : 11.2.1

ATA 191 Multiplatform Analog Telephone Adapter : 11.2.1

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multivuln-GEZYVvs

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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.