Contiki-NG up to 4.4 RPL buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Contiki-NG up to 4.4. The affected element is an unknown function of the component RPL Handler. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2021-21282. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Contiki-NG up to 4.4. This vulnerability affects an unknown code block of the component RPL Handler. 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 presented 06/19/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-21282. The technical details are unknown and an exploit is not available.

Upgrading to version 4.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 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: Contiki-NG 4.5
Patch: github.com

Timelineinfo

12/22/2020 🔍
06/19/2021 +178 days 🔍
06/19/2021 +0 days 🔍
06/21/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21282 (🔍)
GCVE (CVE): GCVE-0-2021-21282
GCVE (VulDB): GCVE-100-177238

Entryinfo

Created: 06/19/2021 07:57
Updated: 06/21/2021 17:04
Changes: 06/19/2021 07:57 (38), 06/21/2021 16:56 (6), 06/21/2021 17:04 (1)
Complete: 🔍
Cache ID: 216::103

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