SB2021030428 - Remote code execution in Cisco IP Phones
Published: March 4, 2021
Security Bulletin ID
SB2021030428
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-1379)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a boundary error in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations. A remote attacker on the local network can trigger memory corruption and execute arbitrary code on the target IP phone or cause a denial of service (DoS) condition.
Remediation
Install update from vendor's website.