Contiki-NG up to 4.1 os/lib/json/jsonparse.c push memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Contiki-NG up to 4.1. The impacted element is the function push in the library os/lib/json/jsonparse.c. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2018-20579. The attack is restricted to local execution. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Contiki-NG up to 4.1 and classified as critical. This vulnerability affects the function push in the library os/lib/json/jsonparse.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Contiki-NG before 4.2 has a stack-based buffer overflow in the push function in os/lib/json/jsonparse.c that allows an out-of-bounds write of an '{' or '[' character.

The bug was discovered 07/11/2018. The weakness was disclosed 12/28/2018 (Website). The advisory is available at github.com. This vulnerability was named CVE-2018-20579 since 12/28/2018. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 170 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.2 eliminates this vulnerability.

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Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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 4.2

Timelineinfo

07/11/2018 🔍
12/28/2018 +170 days 🔍
12/28/2018 +0 days 🔍
12/28/2018 +0 days 🔍
12/29/2018 +1 days 🔍
06/22/2023 +1636 days 🔍

Sourcesinfo

Product: github.com

Advisory: 601
Status: Not defined

CVE: CVE-2018-20579 (🔍)
GCVE (CVE): GCVE-0-2018-20579
GCVE (VulDB): GCVE-100-128542

Entryinfo

Created: 12/29/2018 23:56
Updated: 06/22/2023 14:09
Changes: 12/29/2018 23:56 (58), 04/25/2020 09:42 (1), 06/22/2023 14:09 (4)
Complete: 🔍
Cache ID: 216::103

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