VDB-92273 · CVE-2016-6421 · BID 93212

Cisco IOS XR OSPF LSA Processing resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco IOS XR. Impacted is an unknown function of the component OSPF LSA Processing. The manipulation leads to resource management. This vulnerability is listed as CVE-2016-6421. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS XR (Router Operating System) (version now known) and classified as problematic. This issue affects some unknown processing of the component OSPF LSA Processing. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

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.

The weakness was presented 09/28/2016 with Cisco as cisco-sa-20160928-ospf / CSCvb05643 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2016-6421 since 07/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 93212†) and SecurityTracker (ID 1036909†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103403
OpenVAS Name: Cisco IOS XR Software Open Shortest Path First Link State Advertisement Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/26/2016 🔍
09/28/2016 +64 days 🔍
09/28/2016 +0 days 🔍
09/28/2016 +0 days 🔍
09/30/2016 +2 days 🔍
10/05/2016 +5 days 🔍
04/29/2019 +936 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160928-ospf / CSCvb05643
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-6421 (🔍)
GCVE (CVE): GCVE-0-2016-6421
GCVE (VulDB): GCVE-100-92273
SecurityFocus: 93212 - Cisco IOS XR Software CVE-2016-6421 Denial of Service Vulnerability
SecurityTracker: 1036909

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/30/2016 22:18
Updated: 04/29/2019 07:16
Changes: 09/30/2016 22:18 (60), 04/29/2019 07:16 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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