What is CVE-2022-36052?

CVE-2022-36052 is a vulnerability in the Contiki-NG operating system that allows an attacker to cast a UDP header structure at a certain offset in a packet buffer, without checking if the buffer is large enough to fit a full UDP header.

How does CVE-2022-36052 affect Contiki-NG?

CVE-2022-36052 affects Contiki-NG versions up to but not including 4.8, which have a 6LoWPAN implementation that is vulnerable to casting a UDP header structure at a specific offset in a packet buffer.

What is the severity of CVE-2022-36052?

CVE-2022-36052 has a severity rating of 8.8 (high) based on the Common Vulnerability Scoring System (CVSS).

How can I fix CVE-2022-36052?

To fix CVE-2022-36052, users of Contiki-NG should update to version 4.8 or later, which includes a patch to mitigate the vulnerability.

Where can I find more information about CVE-2022-36052?

More information about CVE-2022-36052 can be found on the Contiki-NG GitHub page: [link].

Vulnerability/
CVE-2022-36052

high

8.8

CWE

125

1/9/2022

3/8/2024

CVE-2022-36052: Out-of-bounds read when decompressing UDP header

First published: Thu Sep 01 2022(Updated: )

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The 6LoWPAN implementation in Contiki-NG may cast a UDP header structure at a certain offset in a packet buffer. The code does not check whether the packet buffer is large enough to fit a full UDP header structure from the offset where the casting is made. Hence, it is possible to cause an out-of-bounds read beyond the packet buffer. The problem affects anyone running devices with Contiki-NG versions previous to 4.8, and which may receive 6LoWPAN packets from external parties. The problem has been patched in Contiki-NG version 4.8.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Contiki-ng Contiki-ng	<4.8

Remedy

https://github.com/contiki-ng/contiki-ng/pull/1648

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Reference Links

Frequently Asked Questions

What is CVE-2022-36052?
CVE-2022-36052 is a vulnerability in the Contiki-NG operating system that allows an attacker to cast a UDP header structure at a certain offset in a packet buffer, without checking if the buffer is large enough to fit a full UDP header.
How does CVE-2022-36052 affect Contiki-NG?
CVE-2022-36052 affects Contiki-NG versions up to but not including 4.8, which have a 6LoWPAN implementation that is vulnerable to casting a UDP header structure at a specific offset in a packet buffer.
What is the severity of CVE-2022-36052?
CVE-2022-36052 has a severity rating of 8.8 (high) based on the Common Vulnerability Scoring System (CVSS).
How can I fix CVE-2022-36052?
To fix CVE-2022-36052, users of Contiki-NG should update to version 4.8 or later, which includes a patch to mitigate the vulnerability.
Where can I find more information about CVE-2022-36052?
More information about CVE-2022-36052 can be found on the Contiki-NG GitHub page: [link].

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