VDB-166097 · CVE-2020-24336 · icsa-20-343-01

Contiki/Contiki-NG Domain Name ip64-dns64.c buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Contiki and Contiki-NG. This affects an unknown function of the file ip64-dns64.c of the component Domain Name Handler. The manipulation leads to buffer overflow. This vulnerability is uniquely identified as CVE-2020-24336. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Contiki and Contiki-NG (affected version unknown). This issue affects an unknown functionality of the file ip64-dns64.c of the component Domain Name Handler. 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 disclosed 12/12/2020 as icsa-20-343-01. The advisory is shared at us-cert.cisa.gov. The identification of this vulnerability is CVE-2020-24336. Technical details are known, but no exploit is available.

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

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
12/12/2020 +121 days 🔍
12/12/2020 +0 days 🔍
12/16/2020 +4 days 🔍

Sourcesinfo

Advisory: icsa-20-343-01
Status: Not defined

CVE: CVE-2020-24336 (🔍)
GCVE (CVE): GCVE-0-2020-24336
GCVE (VulDB): GCVE-100-166097

Entryinfo

Created: 12/12/2020 07:31
Updated: 12/16/2020 14:35
Changes: 12/12/2020 07:31 (36), 12/16/2020 14:35 (2)
Complete: 🔍
Cache ID: 216::103