PT-2022-6065 · Cisco · Cisco Ata 190 Series Analog Telephone Adapter

Qian Chen · Published 2022-10-05 · Updated 2024-01-25 · CVE-2022-20687

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco ATA 190 Series Analog Telephone Adapter (affected versions not specified)

Description The issue is related to the Link Layer Discovery Protocol (LLDP) functionality and Cisco Discovery Protocol implementation in the firmware of Cisco Analog Telephone Adapter (ATA) series 190 devices. It is caused by missing length validation of certain LLDP packet header fields and a buffer overflow read in memory. An unauthenticated, remote attacker could exploit this by sending a malicious LLDP packet to an affected device, potentially allowing the execution of arbitrary code on the device and causing the LLDP service to restart unexpectedly. This could result in a denial of service (DoS) condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-1284

CWE-120

Related Identifiers

BDU:2022-07530

CVE-2022-20687

Affected Products

Cisco Ata 190 Series Analog Telephone Adapter

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-20687 · Security Note
• https://bdu.fstec.ru/vul/2022-07530 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multivuln-GEZYVvs · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-20687 · Vendor Advisory
• https://cisco.com/c/en/us/support/docs/csa/cisco-sa-ata19x-multivuln-GEZYVvs.html · Vendor Advisory
• https://vuldb.com/ru/?id.210197 · Note
• https://t.me/cvenotify/39625 · Telegram Post