ID
VAR-202212-1783
CVE
CVE-2022-41972
TITLE
Contiki-NG In NULL Pointer dereference vulnerability
Trust: 0.8
DESCRIPTION
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. Contiki-NG for, NULL There is a vulnerability in pointer dereference.Service operation interruption (DoS) It may be in a state
Trust: 2.25
AFFECTED PRODUCTS
| vendor: | contiki ng | model: | contiki-ng | scope: | lte | version: | 4.8 | Trust: 1.0 |
| vendor: | contiki ng | model: | contiki-ng | scope: | lte | version: | 4.8 and earlier | Trust: 0.8 |
| vendor: | contiki ng | model: | contiki-ng | scope: | eq | version: | - | Trust: 0.8 |
| vendor: | contiki ng | model: | contiki-ng | scope: | - | version: | - | Trust: 0.8 |
CVSS
SEVERITY | CVSSV2 | CVSSV3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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PROBLEMTYPE DATA
| problemtype: | CWE-476 | Trust: 1.0 |
| problemtype: | NULL Pointer dereference (CWE-476) [ others ] | Trust: 0.8 |
THREAT TYPE
remote or local
Trust: 0.6
TYPE
code problem
Trust: 0.6
PATCH
| title: | Contiki-NG Fixes for code issue vulnerabilities | url: | http://123.124.177.30/web/xxk/bdxqById.tag?id=219182 | Trust: 0.6 |
EXTERNAL IDS
| db: | NVD | id: | CVE-2022-41972 | Trust: 3.3 |
| db: | JVNDB | id: | JVNDB-2022-023971 | Trust: 0.8 |
| db: | CNNVD | id: | CNNVD-202212-3423 | Trust: 0.6 |
| db: | VULMON | id: | CVE-2022-41972 | Trust: 0.1 |
REFERENCES
| url: | https://github.com/contiki-ng/contiki-ng/pull/2253 | Trust: 2.5 |
| url: | https://github.com/contiki-ng/contiki-ng/security/advisories/ghsa-24xp-g5gf-6vvm | Trust: 2.5 |
| url: | https://nvd.nist.gov/vuln/detail/cve-2022-41972 | Trust: 0.8 |
| url: | https://cxsecurity.com/cveshow/cve-2022-41972/ | Trust: 0.6 |
| url: | https://cwe.mitre.org/data/definitions/476.html | Trust: 0.1 |
| url: | https://nvd.nist.gov | Trust: 0.1 |
SOURCES
| db: | VULMON | id: | CVE-2022-41972 |
| db: | JVNDB | id: | JVNDB-2022-023971 |
| db: | CNNVD | id: | CNNVD-202212-3423 |
| db: | NVD | id: | CVE-2022-41972 |
LAST UPDATE DATE
2024-08-14T14:43:33+00:00
SOURCES UPDATE DATE
| db: | VULMON | id: | CVE-2022-41972 | date: | 2022-12-16T00:00:00 |
| db: | JVNDB | id: | JVNDB-2022-023971 | date: | 2023-11-30T04:48:00 |
| db: | CNNVD | id: | CNNVD-202212-3423 | date: | 2022-12-28T00:00:00 |
| db: | NVD | id: | CVE-2022-41972 | date: | 2022-12-27T17:18:09.363 |
SOURCES RELEASE DATE
| db: | VULMON | id: | CVE-2022-41972 | date: | 2022-12-16T00:00:00 |
| db: | JVNDB | id: | JVNDB-2022-023971 | date: | 2023-11-30T00:00:00 |
| db: | CNNVD | id: | CNNVD-202212-3423 | date: | 2022-12-16T00:00:00 |
| db: | NVD | id: | CVE-2022-41972 | date: | 2022-12-16T18:15:08.487 |