CVE-2022-41873
Contiki-NG Bluetooth Low Energy Out-of-bounds Read Vulnerability
Description
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. Versions prior to 4.9 are vulnerable to an Out-of-bounds read. While processing the L2CAP protocol, the Bluetooth Low Energy stack of Contiki-NG needs to map an incoming channel ID to its metadata structure. While looking up the corresponding channel structure in get_channel_for_cid (in os/net/mac/ble/ble-l2cap.c), a bounds check is performed on the incoming channel ID, which is meant to ensure that the channel ID does not exceed the maximum number of supported channels.However, an integer truncation issue leads to only the lowest byte of the channel ID to be checked, which leads to an incomplete out-of-bounds check. A crafted channel ID leads to out-of-bounds memory to be read and written with attacker-controlled data. The vulnerability has been patched in the "develop" branch of Contiki-NG, and will be included in release 4.9. As a workaround, Users can apply the patch in Contiki-NG pull request 2081 on GitHub.
INFO
Published Date :
Nov. 11, 2022, 4:15 a.m.
Last Modified :
Nov. 18, 2022, 2:05 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
2.5
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-41873.
| URL | Resource |
|---|---|
| https://github.com/contiki-ng/contiki-ng/pull/2081 | Patch Third Party Advisory |
| https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m5cj-fw8m-ffgf | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-41873 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-41873 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Nov. 18, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Changed Reference Type https://github.com/contiki-ng/contiki-ng/pull/2081 No Types Assigned https://github.com/contiki-ng/contiki-ng/pull/2081 Patch, Third Party Advisory Changed Reference Type https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m5cj-fw8m-ffgf No Types Assigned https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m5cj-fw8m-ffgf Third Party Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* versions up to (excluding) 4.9
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-41873 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-41873
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.21759
percentile