Cisco IOS IPv6 Stack input validation

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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component IPv6 Stack. Performing a manipulation results in input validation. This vulnerability is known as CVE-2014-2113. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Cisco IOS (Router Operating System) (version unknown). It has been classified as critical. This affects an unknown function of the component IPv6 Stack. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

Cisco IOS 15.1 through 15.3 and IOS XE 3.3 and 3.5 before 3.5.2E; 3.7 before 3.7.5S; and 3.8, 3.9, and 3.10 before 3.10.2S allow remote attackers to cause a denial of service (I/O memory consumption and device reload) via a malformed IPv6 packet, aka Bug ID CSCui59540.

The weakness was published 03/26/2014 with Cisco as cisco-sa-20140326-ipv6 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2014-2113 since 02/25/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 73343 (Cisco IOS XE Software IPv6 Denial of Service (cisco-sa-20140326-ipv6), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43381 (Cisco IOS Software Crafted IPv6 Packet Denial of Service Vulnerability (cisco-sa-20140326-ipv6)).

Applying the patch cisco-sa-20140326-ipv6 is able to eliminate this problem. The bugfix is ready for download at tools.cisco.com.It is possible to mitigate the weakness by firewalling IPv6. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (92057), Tenable (73343), SecurityFocus (BID 66467†), OSVDB (104968†) and Secunia (SA57635†). Similar entries are available at VDB-12704, VDB-12703 and VDB-12702. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73343
Nessus Name: Cisco IOS XE Software IPv6 Denial of Service (cisco-sa-20140326-ipv6
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: cisco-sa-20140326-ipv6
Firewalling: 🔍

Timelineinfo

02/25/2014 🔍
03/26/2014 +29 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/27/2014 +1 days 🔍
03/27/2014 +0 days 🔍
03/27/2014 +0 days 🔍
04/04/2014 +8 days 🔍
05/09/2026 +4418 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20140326-ipv6
Organization: Cisco
Status: Confirmed

CVE: CVE-2014-2113 (🔍)
GCVE (CVE): GCVE-0-2014-2113
GCVE (VulDB): GCVE-100-12705

IAVM: 🔍

X-Force: 92057 - Cisco IOS IPv6 packets denial of service, High Risk
SecurityFocus: 66467 - Cisco IOS and Cisco IOS XE 'IPv6' Packet Denial of Service Vulnerability
Secunia: 57635
OSVDB: 104968
SecurityTracker: 1029961 - Cisco IOS IPv6 Stack Bug Lets Remote Users Deny Service
Vulnerability Center: 43766 - [cisco-sa-20140326-ipv6] Cisco IOS and IOS XE Remote Denial of Service Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/27/2014 12:30
Updated: 05/09/2026 03:35
Changes: 03/27/2014 12:30 (49), 05/24/2017 10:37 (36), 06/16/2021 09:30 (3), 12/19/2024 10:58 (16), 05/09/2026 03:35 (1)
Complete: 🔍
Cache ID: 216::103

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