CVE-2022-20687
12.12.2022, 09:15
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device and cause the LLDP service to restart. These vulnerabilities are due to missing length validation of certain LLDP packet header fields. An attacker could exploit these vulnerabilities by sending a malicious LLDP packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause LLDP to restart unexpectedly, resulting in a denial of service (DoS) condition.
| Vendor | Product | Version |
|---|---|---|
| cisco | ata_190_firmware | - |
| cisco | ata_191_firmware | 𝑥 < 11.2.2 |
| cisco | ata_191_firmware | 𝑥 < 12.0.1 |
| cisco | ata_191_firmware | 12.0.1 |
| cisco | ata_191_firmware | 12.0.1:sr1 |
| cisco | ata_191_firmware | 12.0.1:sr2 |
| cisco | ata_191_firmware | 12.0.1:sr3 |
| cisco | ata_191_firmware | 12.0.1:sr4 |
| cisco | ata_192_firmware | 𝑥 < 11.2.2 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
- CWE-1284 - Improper Validation of Specified Quantity in InputThe product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.