What is CVE-2019-9183?

CVE-2019-9183 is a vulnerability discovered in Contiki-NG and Contiki that allows a buffer overflow due to an integer underflow during 6LoWPAN fragment processing, resulting in crashing the application.

What is the severity of CVE-2019-9183?

CVE-2019-9183 has a severity level of 7.5 (high).

How does CVE-2019-9183 affect software?

CVE-2019-9183 affects Contiki-NG versions up to and including 4.3, and Contiki versions up to and including 3.0.

How can I fix CVE-2019-9183?

To fix CVE-2019-9183, it is recommended to upgrade to Contiki-NG version 4.4 or newer, or Contiki version 3.1 or newer.

Where can I find more information about CVE-2019-9183?

More information about CVE-2019-9183 can be found at the following references: [Reference 1](https://github.com/contiki-ng/contiki-ng/pull/972), [Reference 2](https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4), [Reference 3](https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf)

Vulnerability/
CVE-2019-9183

high

7.5

CWE

191 787 119

23/4/2020

4/8/2024

CVE-2019-9183: Integer Underflow

First published: Thu Apr 23 2020(Updated: )

An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Contiki-ng Contiki-ng	<=4.3
Contiki-os Contiki	<=3.0

Remedy

https://github.com/contiki-ng/contiki-ng/pull/972

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Reference Links

Frequently Asked Questions

What is CVE-2019-9183?
CVE-2019-9183 is a vulnerability discovered in Contiki-NG and Contiki that allows a buffer overflow due to an integer underflow during 6LoWPAN fragment processing, resulting in crashing the application.
What is the severity of CVE-2019-9183?
CVE-2019-9183 has a severity level of 7.5 (high).
How does CVE-2019-9183 affect software?
CVE-2019-9183 affects Contiki-NG versions up to and including 4.3, and Contiki versions up to and including 3.0.
How can I fix CVE-2019-9183?
To fix CVE-2019-9183, it is recommended to upgrade to Contiki-NG version 4.4 or newer, or Contiki version 3.1 or newer.
Where can I find more information about CVE-2019-9183?
More information about CVE-2019-9183 can be found at the following references: [Reference 1](https://github.com/contiki-ng/contiki-ng/pull/972), [Reference 2](https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4), [Reference 3](https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf)

collector/nvd-index
agent/type
collector/mitre-cve
source/MITRE
agent/remedy
agent/references
agent/severity
agent/weakness
agent/last-modified-date
agent/author
agent/softwarecombine
agent/tags
agent/first-publish-date
agent/event
agent/description
vendor/contiki-ng
canonical/contiki-ng contiki-ng
version/contiki-ng contiki-ng/4.3
vendor/contiki-os
canonical/contiki-os contiki
version/contiki-os contiki/3.0

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