VDB-93301 · CVE-2016-6455 · BID 94071

Cisco ASR 5500 18.7.4/19.5.0/20.0.2.64048/20.2.3/21.0.0 Slowpath resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco ASR 5500 18.7.4/19.5.0/20.0.2.64048/20.2.3/21.0.0. It has been classified as problematic. Affected is an unknown function of the component Slowpath. This manipulation causes resource management. This vulnerability is handled as CVE-2016-6455. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco ASR 5500 18.7.4/19.5.0/20.0.2.64048/20.2.3/21.0.0 (Router Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Slowpath. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the Slowpath of StarOS for Cisco ASR 5500 Series routers with Data Processing Card 2 (DPC2) could allow an unauthenticated, remote attacker to cause a subset of the subscriber sessions to be disconnected, resulting in a partial denial of service (DoS) condition. This vulnerability affects Cisco ASR 5500 devices with Data Processing Card 2 (DPC2) running StarOS 18.0 or later. More Information: CSCvb12081. Known Affected Releases: 18.7.4 19.5.0 20.0.2.64048 20.2.3 21.0.0. Known Fixed Releases: 18.7.4 18.7.4.65030 18.8.M0.65044 19.5.0 19.5.0.65092 19.5.M0.65023 19.5.M0.65050 20.2.3 20.2.3.64982 20.2.3.65017 20.2.a4.65307 20.3.M0.64984 20.3.M0.65029 20.3.M0.65037 20.3.M0.65071 20.3.T0.64985 20.3.T0.65031 20.3.T0.65043 20.3.T0.65067 21.0.0 21.0.0.65256 21.0.M0.64922 21.0.M0.64983 21.0.M0.65140 21.0.V0.65150 21.1.A0.64932 21.1.A0.64987 21.1.A0.65145 21.1.PP0.65270 21.1.R0.65130 21.1.R0.65135 21.1.R0.65154 21.1.VC0.65203 21.2.A0.65147.

The weakness was released 11/03/2016 with Cisco (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2016-6455 since 07/26/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 18.7.4, 18.7.4.65030, 18.8.M0.65044, 19.5.0, 19.5.0.65092, 19.5.M0.65023, 19.5.M0.65050, 20.2.3, 20.2.3.64982, 20.2.3.65017, 20.2.a4.65307, 20.3.M0.64984, 20.3.M0.65029, 20.3.M0.65037, 20.3.M0.65071, 20.3.T0.64985 or 20.3.T0.65031 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94071†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ASR 5500 18.7.4/18.7.4.65030/18.8.M0.65044/19.5.0/19.5.0.65092/19.5.M0.65023/19.5.M0.65050/20.2.3/20.2.3.64982/20.2.3.65017/20.2.a4.65307/20.3.M0.64984/20.3.M0.65029/20.3.M0.65037/20.3.M0.65071/20.3.T0.64985/20.3.T0.65031

Timelineinfo

07/26/2016 🔍
11/02/2016 +99 days 🔍
11/03/2016 +1 days 🔍
11/03/2016 +0 days 🔍
11/07/2016 +4 days 🔍
09/29/2022 +2152 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: tools.cisco.com
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6455 (🔍)
GCVE (CVE): GCVE-0-2016-6455
GCVE (VulDB): GCVE-100-93301
SecurityFocus: 94071 - Cisco StarOS for ASR 5500 Series Routers CVE-2016-6455 Remote Denial of Service Vulnerability
SecurityTracker: 1037186

Entryinfo

Created: 11/07/2016 22:10
Updated: 09/29/2022 14:16
Changes: 11/07/2016 22:10 (51), 05/26/2019 14:57 (13), 09/29/2022 14:16 (3)
Complete: 🔍
Cache ID: 216:662:103

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