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.

Weakness classification

• CWE-191: Integer Underflow (Wrap or Wraparound)
• CWE-787: Out-of-bounds Write

Primary references

• cve@mitre.org — Patch, Third Party Advisory
• cve@mitre.org — Release Notes, Third Party Advisory
• cve@mitre.org — Technical Description, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Technical Description, Third Party Advisory