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Vulnerability of Cisco IP Phone 7800/8800: denial of service via CDP/LLDP

Synthesis of the vulnerability 

An attacker can trigger a fatal error via CDP/LLDP of Cisco IP Phone 7800/8800, in order to trigger a denial of service.
Vulnerable software: Cisco IP Phone.
Severity of this announce: 2/4.
Creation date: 21/02/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-073, cisco-sa-20190220-cdp-lldp-dos, CSCvn47250, CSCvo54699, CSCvo55040, CVE-2019-1684, VIGILANCE-VUL-28573.

Description of the vulnerability 

An attacker can trigger a fatal error via CDP/LLDP of Cisco IP Phone 7800/8800, in order to trigger a denial of service.
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This vulnerability note impacts software or systems such as Cisco IP Phone.

Our Vigil@nce team determined that the severity of this cybersecurity vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of LAN.

An attacker with a expert ability can exploit this computer threat note.

Solutions for this threat 

Cisco IP Phone 7800/8800: solution CSCvn47250 CSCvo54699 CSCvo55040.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn47250
  https://tools.cisco.com/bugsearch/bug/CSCvn47250
  https://tools.cisco.com/quickview/bug/CSCvn47250
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo54699
  https://tools.cisco.com/bugsearch/bug/CSCvo54699
  https://tools.cisco.com/quickview/bug/CSCvo54699
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo55040
  https://tools.cisco.com/bugsearch/bug/CSCvo55040
  https://tools.cisco.com/quickview/bug/CSCvo55040
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

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