CVE-2022-20689
First published: Wed Dec 07 2022(Updated: )
Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause Cisco Discovery Protocol memory corruption on an affected device. These vulnerabilities are due to missing length validation checks when processing Cisco Discovery Protocol messages. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read of the valid Cisco Discovery Protocol packet data, which could allow the attacker to cause corruption in the internal Cisco Discovery Protocol database of the affected device.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Cisco ATA 190 firmware | ||
| Cisco ATA 190 Series Analog Telephone Adapter | ||
| All of | ||
| Cisco ATA 191 | <11.2.2 | |
| Cisco ATA | ||
| All of | ||
| Any of | ||
| Cisco ATA 191 | <12.0.1 | |
| Cisco ATA 191 | =12.0.1 | |
| Cisco ATA 191 | =12.0.1-sr1 | |
| Cisco ATA 191 | =12.0.1-sr2 | |
| Cisco ATA 191 | =12.0.1-sr3 | |
| Cisco ATA 191 | =12.0.1-sr4 | |
| Cisco ATA | ||
| All of | ||
| Cisco ATA 192 | <11.2.2 | |
| Cisco ATA | ||
| Cisco ATA 190 firmware | ||
| Cisco ATA 190 Series Analog Telephone Adapter | ||
| Cisco ATA 191 | <11.2.2 | |
| Cisco ATA | ||
| Cisco ATA 191 | <12.0.1 | |
| Cisco ATA 191 | =12.0.1 | |
| Cisco ATA 191 | =12.0.1-sr1 | |
| Cisco ATA 191 | =12.0.1-sr2 | |
| Cisco ATA 191 | =12.0.1-sr3 | |
| Cisco ATA 191 | =12.0.1-sr4 | |
| Cisco ATA | ||
| Cisco ATA 192 | <11.2.2 | |
| Cisco ATA |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-20689?
CVE-2022-20689 has been rated with a critical severity level, indicating that it poses a significant risk to affected devices.
How do I fix CVE-2022-20689?
To mitigate CVE-2022-20689, update the Cisco ATA 190 firmware to the latest version provided by Cisco.
Who is affected by CVE-2022-20689?
CVE-2022-20689 affects users of the Cisco ATA 190 Series Analog Telephone Adapter with vulnerable firmware versions.
What type of vulnerability is CVE-2022-20689?
CVE-2022-20689 is a memory corruption vulnerability in the Cisco Discovery Protocol functionality.
Can CVE-2022-20689 be exploited remotely?
CVE-2022-20689 requires an unauthenticated, adjacent attacker to exploit the vulnerability, which limits its remote exploitability.
- agent/type
- agent/weakness
- agent/references
- agent/severity
- agent/first-publish-date
- agent/event
- agent/description
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/cisco
- canonical/cisco ata 190 firmware
- canonical/cisco ata 190 series analog telephone adapter
- canonical/cisco ata 191
- canonical/cisco ata
- version/cisco ata 191/12.0.1
- version/cisco ata 191/12.0.1-sr1
- version/cisco ata 191/12.0.1-sr2
- version/cisco ata 191/12.0.1-sr3
- version/cisco ata 191/12.0.1-sr4
- canonical/cisco ata 192