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Vulnerability of Cisco IOS XR: denial of service via DHCPv6

Synthesis of the vulnerability 

An attacker can send a malicious DHCPv6 packet to Cisco IOS, in order to trigger a denial of service.
Impacted systems: Cisco ASR, IOS XR Cisco.
Severity of this alert: 2/4.
Creation date: 20/05/2014.
Références of this alert: CSCul61849, CSCul71149, CSCum20949, CSCum85558, CVE-2014-3271, VIGILANCE-VUL-14771.

Description of the vulnerability 

An attacker can send a malicious DHCPv6 packet to Cisco IOS, in order to trigger a denial of service.
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This computer vulnerability note impacts software or systems such as Cisco ASR, IOS XR Cisco.

Our Vigil@nce team determined that the severity of this computer vulnerability announce 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 cybersecurity announce.

Solutions for this threat 

Cisco IOS XR: solution CSCum85558.
The solution CSCum85558 is available:
  https://tools.cisco.com/bugsearch/bug/CSCum85558

Cisco IOS XR: solution CSCum20949.
The solution CSCum20949 is available:
  https://tools.cisco.com/bugsearch/bug/CSCum20949

Cisco IOS XR: solution CSCul61849.
The solution CSCul61849 is available:
  https://tools.cisco.com/bugsearch/bug/CSCul61849

Cisco IOS XR: solution CSCul71149.
The solution CSCul71149 is available:
  https://tools.cisco.com/bugsearch/bug/CSCul71149
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

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