VDB-184626 · CVE-2020-12141 · GCVE-0-2020-12141

Contiki-NG up to 4.4 SNMP Packet snmp-ber.c snmp_ber_decode_string_len_buffer out-of-bounds

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Contiki-NG up to 4.4. This affects the function snmp_ber_decode_string_len_buffer of the file os/net/app-layer/snmp/snmp-ber.c of the component SNMP Packet Handler. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2020-12141. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Contiki-NG up to 4.4. Affected is the function snmp_ber_decode_string_len_buffer of the file os/net/app-layer/snmp/snmp-ber.c of the component SNMP Packet Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality.

The weakness was released 10/19/2021 as 12c824386ab60de757de5001974d73b32e19ad71. The advisory is available at github.com. This vulnerability is traded as CVE-2020-12141 since 04/24/2020. Technical details are known, but there is no available exploit.

Applying the patch 12c824386ab60de757de5001974d73b32e19ad71 is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Contiki-NG

Version

License

open-source

Website

Product: https://github.com/contiki-ng/contiki-ng/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 12c824386ab60de757de5001974d73b32e19ad71

Timelineinfo

04/24/2020 🔍
10/19/2021 +543 days 🔍
10/19/2021 +0 days 🔍
10/23/2021 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: 12c824386ab60de757de5001974d73b32e19ad71
Status: Confirmed

CVE: CVE-2020-12141 (🔍)
GCVE (CVE): GCVE-0-2020-12141
GCVE (VulDB): GCVE-100-184626

Entryinfo

Created: 10/19/2021 21:22
Updated: 10/23/2021 08:23
Changes: 10/19/2021 21:22 (42), 10/23/2021 08:23 (1)
Complete: 🔍
Cache ID: 216::103