CVE-2016-6421

Published on: 10/05/2016 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:27:11 PM UTC

CVE-2016-6421

Source: Mitre
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Certain versions of Ios Xr from Cisco contain the following vulnerability:

Cisco IOS XR 5.2.2 allows remote attackers to cause a denial of service (process restart) via a crafted OSPF Link State Advertisement (LSA) update, aka Bug ID CSCvb05643.

  • CVE-2016-6421 has been assigned by [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.3 - MEDIUM

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED NONE NONE LOW

CVSS2 Score: 5 - MEDIUM

Access
Vector ⓘ		 Access
Complexity		 Authentication
NETWORK LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
NONE NONE PARTIAL

CVE References

Description Tags ⓘ Link
Cisco IOS XR Software CVE-2016-6421 Denial of Service Vulnerability cve.report (archive)
text/html
 URL Logo BID 93212
Cisco IOS XR OSPF LSA Processing Flaw Lets Remote Users Cause the Target Service to Restart - SecurityTracker www.securitytracker.com
text/html
 URL Logo SECTRACK 1036909
Cisco IOS XR Software Open Shortest Path First Link State Advertisement Denial of Service Vulnerability Vendor Advisory
tools.cisco.com
text/html
 URL Logo CISCO 20160928 Cisco IOS XR Software Open Shortest Path First Link State Advertisement Denial of Service Vulnerability
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Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System		CiscoIos Xr5.2.2AllAllAll
Operating
System		CiscoIos Xr5.2.2AllAllAll
  • cpe:2.3:o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*: