CVE-2022-41972

Published: Dic 16, 2022 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2022-45076 Aliases: GSD-2022-41972
ExploitDB:
Other exploit source:
Google Dorks:
LOW 2,9
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low

Description

AI Translation Available

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. Versions prior to 4.9 contain a NULL Pointer Dereference in BLE L2CAP module. The Contiki-NG operating system for IoT devices contains a Bluetooth Low Energy stack. An attacker can inject a packet in this stack, which causes the implementation to dereference a NULL pointer and triggers undefined behavior. More specifically, while processing the L2CAP protocol, the implementation maps an incoming channel ID to its metadata structure. In this structure, state information regarding credits is managed through calls to the function input_l2cap_credit in the module os/net/mac/ble/ble-l2cap.c. Unfortunately, the input_l2cap_credit function does not check that the metadata corresponding to the user-supplied channel ID actually exists, which can lead to the channel variable being set to NULL before a pointer dereferencing operation is performed. The vulnerability has been patched in the 'develop' branch of Contiki-NG, and will be included in release 4.9. Users can apply the patch in Contiki-NG pull request #2253 as a workaround until the new package is released.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0006
Percentile
0,2th
Updated

EPSS Score Trend (Last 91 Days)

476

NULL Pointer Dereference

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory
Applicable Platforms
Languages: C, C#, C++, Go, Java
Likelihood of Exploit: Medium
View CWE Details
Operating System

Contiki-Ng by Contiki-Ng

Product Information
Vendor Contiki-Ng
Product Contiki-Ng
Version Range Affected
To 4.8 (inclusive)
cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/contiki-ng/contiki-ng/pull/2253
Patch Third Party Advisory
https://github.com/contiki-ng/contiki-ng/pull/2253
https://github.com/contiki-ng/contiki-ng/security/advisorie…
Third Party Advisory
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-24xp-g5gf-6vvm
https://github.com/contiki-ng/contiki-ng/pull/2253
Patch Third Party Advisory
https://github.com/contiki-ng/contiki-ng/pull/2253
https://github.com/contiki-ng/contiki-ng/security/advisorie…
Third Party Advisory
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-24xp-g5gf-6vvm