Cisco ASR 5000 19.0.M0.60828 OSPF Header Handler denial of service : 8/21/2015 11:47:49 AM
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Cisco ASR 5000 19.0.M0.60828 OSPF Header Handler denial of service
8/20/2015 7:00:00 PM
General
scipID: 77374
Affected: Cisco ASR 5000 19.0.M0.60828
Published: 08/21/2015
Risk: problematic
Created: 08/21/2015
Entry: 71.4% complete
Summary
A vulnerability classified as problematic was found in Cisco ASR 5000 19.0.M0.60828. This vulnerability affects an unknown function of the component OSPF Header Handler. The manipulation with an unknown input leads to a denial of service vulnerability. As an impact it is known to affect availability.
The weakness was shared 08/21/2015 as 40585 / CSCuv62820 as confirmed vulnerability alert (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2015-6256. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability. The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1033355).CVSS
Base Score: 4.3 (CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P) [?]
Temp Score: 3.7 (CVSS2#E:ND/RL:OF/RC:C) [?]
CPE
Exploiting
Class: Denial of service
Local: No
Remote: Yes
Availability: No
Countermeasures
Recommended: Patch
Status: Official fix
Reaction Time: 0 days since reported
0-Day Time: 0 days since found
Exposure Time: 0 days since known
Timeline
08/21/2015 | Advisory disclosed
08/21/2015 | Countermeasure disclosed
08/21/2015 | VulDB entry created
08/21/2015 | SecurityTracker entry created
08/21/2015 | VulDB entry updated
Sources
Advisory: 40585 / CSCuv62820
Status: Confirmed
CVE: CVE-2015-6256 (mitre.org) (nvd.nist.org) (cvedetails.com)
SecurityTracker: 1033355 – Cisco ASR 5000 Series Router OSPF Header Processing Flaw Lets Remote Users Cause the Target OSPF Service to Restart
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