cisco-sa-20190501-phone-sip-xml-dos: Cisco IP Phone 7800 Series and 8800 Series Session Initiation Protocol XML Denial of Service Vulnerability

First published: Wed May 01 2019(Updated: )

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-phone-sip-xml-dos

Credit: This vulnerability was found during the resolution a Cisco TAC support case

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.

Read MoreStart Free Trial

• agent/type
• agent/event
• agent/first-publish-date
• agent/last-modified-date
• collector/cisco-advisory
• source/Cisco
• agent/author
• agent/severity
• agent/title
• agent/references
• agent/weakness
• agent/description
• agent/source
• agent/tags
• agent/softwarecombine
• agent/guess-ai
• agent/software-canonical-lookup
• agent/software-canonical-lookup-request
• vendor/cisco
• canonical/cisco ip phone 7800 series firmware
• canonical/cisco ip phone 8800 series software