Cisco Small Business 220 Link Layer Discovery Protocol buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Small Business 220 220. It has been declared as critical. Affected is an unknown function of the component Link Layer Discovery Protocol. Executing a manipulation can lead to buffer overflow. This vulnerability is tracked as CVE-2021-34777. The attack is only possible within the local network. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Cisco Small Business 220 220. This vulnerability affects some unknown processing of the component Link Layer Discovery Protocol. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 10/07/2021 as cisco-sa-sb220-lldp-multivuls-mVRUtQ8T. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2021-34777 since 06/15/2021. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

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: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: 🔍

Timelineinfo

06/15/2021 🔍
10/07/2021 +114 days 🔍
10/07/2021 +0 days 🔍
10/10/2021 +3 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-sb220-lldp-multivuls-mVRUtQ8T
Status: Confirmed

CVE: CVE-2021-34777 (🔍)
GCVE (CVE): GCVE-0-2021-34777
GCVE (VulDB): GCVE-100-183952

Entryinfo

Created: 10/07/2021 08:02
Updated: 10/10/2021 07:15
Changes: 10/07/2021 08:02 (49), 10/10/2021 07:15 (1)
Complete: 🔍
Cache ID: 216::103

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