High severity7.5NVD Advisory· Published Apr 23, 2020· Updated Jun 17, 2026
CVE-2019-9183
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- Contiki-NG/Contiki-NGdescription
cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*range: <=4.3
- (no CPE)range: <=4.3
cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*range: <=3.0
- (no CPE)range: <=3.0
Patches
Vulnerability mechanics
References
3- github.com/contiki-ng/contiki-ng/pull/972nvdPatchThird Party Advisory
- github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4nvdRelease NotesThird Party Advisory
- www.usenix.org/system/files/sec20summer_clements_prepub.pdfnvdTechnical DescriptionThird Party Advisory
News mentions
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