Contiki-NG TinyDTLS up to 2018-08-30 dtls_ccm_decrypt_message buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Contiki-NG TinyDTLS up to 2018-08-30. The impacted element is the function dtls_ccm_decrypt_message. The manipulation leads to buffer overflow. This vulnerability is listed as CVE-2021-42144. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Contiki-NG TinyDTLS up to 2018-08-30. It has been rated as critical. This issue affects the function dtls_ccm_decrypt_message. 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 01/18/2024. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-42144. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/12/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/11/2021 🔍
01/18/2024 +829 days 🔍
01/18/2024 +0 days 🔍
02/12/2024 +25 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined

CVE: CVE-2021-42144 (🔍)
GCVE (CVE): GCVE-0-2021-42144
GCVE (VulDB): GCVE-100-251423

Entryinfo

Created: 01/18/2024 01:02
Updated: 02/12/2024 08:45
Changes: 01/18/2024 01:02 (36), 02/12/2024 08:41 (2), 02/12/2024 08:45 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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