CVE-2019-9183

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.

Score

CVSS 3.1 7.5 High

Status

Modified - cve@mitre.org

Published

2020-04-23

Last modified

2024-08-04

Weaknesses

CWE-191, CWE-787

Affected products

• Contiki-ng (Contiki-ng)
• Contiki (Contiki-os)

References

• https://github.com/contiki-ng/contiki-ng/pull/972
• https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4
• https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf