CVE-2019-1635: cisco cisco ip phone 7800 series and 8800 series Resource Management Errors

Vulnerability summary

CVE-2019-1635 is a high (CVSS 7.8) Resource Management Errors vulnerability in cisco cisco ip phone 7800 series and 8800 series. EPSS estimates a 1.97% chance of exploitation in the next 30 days, higher than 80% of scored vulnerabilities.

Timeline

1. 03-05-2019
   PublishedVulnerability first disclosed.
2. 19-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to incomplete error handling when XML data within a SIP packet is parsed. An attacker could exploit this vulnerability by sending a SIP packet that contains a malicious XML payload to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition.

• CWE-399Resource Management ErrorsWeaknesses in this category are related to improper management of system resources.
• CWE-755Improper Handling of Exceptional ConditionsThe product does not handle or incorrectly handles an exceptional condition.