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. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Link Layer Discovery Protocol. The manipulation leads to buffer overflow. This vulnerability is listed as CVE-2021-34778. The attack must be carried out from within the local network. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco Small Business 220 (version unknown). This issue affects an unknown function of the component Link Layer Discovery Protocol. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was presented 10/07/2021 as cisco-sa-sb220-lldp-multivuls-mVRUtQ8T. The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2021-34778 since 06/15/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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

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

CVSSv2info

AVACAuCIA
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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-2021-34778 (🔍)
GCVE (CVE): GCVE-0-2021-34778
GCVE (VulDB): GCVE-100-183953

Entryinfo

Created: 10/07/2021 08:03
Updated: 10/10/2021 07:20
Changes: 10/07/2021 08:03 (48), 10/10/2021 07:20 (1)
Complete: 🔍
Cache ID: 216::103

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