CVE-2019-9183

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.58%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory usenix.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/contiki-ng/contiki-ng/pull/972 third party advisory patch
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4 third party advisory release notes
https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2019-9183?
CVE-2019-9183 has been scored as a high severity vulnerability.
How to fix CVE-2019-9183?
To fix CVE-2019-9183, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-9183 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-9183 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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