Cisco IOS XR prior 4.1.0 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Cisco IOS XR. Affected by this vulnerability is an unknown functionality. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2011-2549. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS XR (Router Operating System). Affected by this issue is an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.

The weakness was shared 07/28/2011 with Cisco (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2011-2549 since 06/27/2011. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (68733), SecurityFocus (BID 48811†), Secunia (SA45333†), SecurityTracker (ID 1025811†) and Vulnerability Center (SBV-32387†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IOS XR 4.1.0

Timelineinfo

06/27/2011 🔍
07/20/2011 +23 days 🔍
07/20/2011 +0 days 🔍
07/20/2011 +0 days 🔍
07/21/2011 +1 days 🔍
07/24/2011 +3 days 🔍
07/28/2011 +4 days 🔍
07/28/2011 +0 days 🔍
03/23/2015 +1334 days 🔍
03/28/2017 +736 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2011-2549 (🔍)
GCVE (CVE): GCVE-0-2011-2549
GCVE (VulDB): GCVE-100-58124
X-Force: 68733
SecurityFocus: 48811 - Cisco ASR 9000 Series Routers IP Version 4 Denial of Service Vulnerability
Secunia: 45333 - Cisco ASR 9000 Series Line Card Denial of Service Vulnerability, Moderately Critical
SecurityTracker: 1025811 - Cisco ASR 9000 Series Router IPv4 Packet Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 32387 - [cisco-sa-20110720-asr9k] Cisco ASR 9000 Series Routers Remote DoS via Crafted IPv4 Packets, High

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 03/28/2017 09:00
Changes: 03/23/2015 16:50 (50), 03/28/2017 09:00 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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