CVE-2021-1379: Cisco ip conference phone 7832 firmware classic buffer overflow vulnerability

Description

Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone. These vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

34 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Ip Conference Phone 7832 Firmware Cisco Ip Conference Phone 7832 With Multiplatform Firmware Cisco Ip Conference Phone 8832 Firmware Cisco Ip Conference Phone 8832 With Multiplatform Firmware Cisco Ip Phone 6821 With Multiplatform Firmware Cisco Ip Phone 6841 With Multiplatform Firmware Cisco Ip Phone 6851 With Multiplatform Firmware Cisco Ip Phone 6861 With Multiplatform Firmware Cisco Ip Phone 6871 With Multiplatform Firmware Cisco Ip Phone 7811 Firmware Cisco Ip Phone 7811 With Multiplatform Firmware Cisco Ip Phone 7821 Firmware Cisco Ip Phone 7821 With Multiplatform Firmware Cisco Ip Phone 7841 Firmware Cisco Ip Phone 7841 With Multiplatform Firmware Cisco Ip Phone 7861 Firmware Cisco Ip Phone 7861 With Multiplatform Firmware Cisco Ip Phone 8811 Firmware Cisco Ip Phone 8811 With Multiplatform Firmware Cisco Ip Phone 8841 Firmware Cisco Ip Phone 8841 With Multiplatform Firmware Cisco Ip Phone 8845 Firmware Cisco Ip Phone 8845 With Multiplatform Firmware Cisco Ip Phone 8851 Firmware Cisco Ip Phone 8851 With Multiplatform Firmware Cisco Ip Phone 8861 Firmware Cisco Ip Phone 8861 With Multiplatform Firmware Cisco Ip Phone 8865 Firmware Cisco Ip Phone 8865 With Multiplatform Firmware Cisco Spa525g Firmware Cisco Unified Ip Conference Phone 8831 Firmware Cisco Unified Ip Conference Phone 8831 For Third Party Call Control Firmware Cisco Wireless Ip Phone 8821 Firmware Cisco Wireless Ip Phone 8821 Ex Firmware Cisco

References

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.